THE BONIER MARBLE PROPERTY - Ontario

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i31C12SEM67 63.45** MARMORA 010

THE BONIER MARBLE PROPERTY

LOTS 16 AND 17j CONCESSION XI MARMORA TOWNSHIP HASTINGS COUNTY

ONTARIO

PROJECT: EXPN BM

GEOLOGICAL REPORT

BY

G, ROBERT GUILLET

MARCH 15, 1985

NORTHEAST

^•- y ;A ™. i 1

1OT

——4

S'V'-'

*-V.^•'••-'"•'""" X" KilometresO

JttZes ?.50

100

100

FIGURE l - PROPERTY LOCATION MAP


31C12SEM67 63.45** MARMORA

TABLE OF CONTENTS

INTRODUCTION LOCATION

MINING HISTORY

GOLD

MARBLE

PROSPECTING AND GEOLOGICAL MAPPING

GENERAL GEOLOGY

DIAMOND DRILLING LABORATORY TESTING

QUALITY AND QUANTITY OF MARBLE RESERVES

SUMMARY AND CONCLUSIONS SELECTED REFERENCES

APPENDICES

l2

DESCRIPTIVE DRILLCORE LOG

LABORATORY REPORT

FIGURES

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PROPERTY LOCATION MAP

PROPERTY PLAN

DRILLHOLE SECTION

MAPS

l - GEOLOGY OF THE BONTER MARBLE PROPERTY

PAGE

12

7 -3 1114151719

O1OC

FRONTESPIECE

3

12

MAP POCKET

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INTRODUCTION

As a result of a continuing interest over a number of years, the writer optioned the Bonter property in September 1984. A former pro ducer of marble chips, the property had been idle since before 1970. Much earlier it had also been a small gold producer.

However, it was the white calcitic marble that attracted the writer, and the possibility that it might be of sufficient purity and uniformity for high-grade filler uses.

An application for assistance under the Ontario Mineral Exploration Program was approved on October 22, 1984. The OMEP agreement entitles the applicant to a 25 percent reimbursement for certain exploration expenditures on receipt of complete technical and financial reports. This report details the technical aspects of the exploration project and is submitted in partial fulfillment of the OMEP terms.

Exploration of the Bonter property included prospecting and surface examination of the marble outcrops, geological mapping, diamond drilling and laboratory evaluation of drill core samples. The results of these activities are described on the following pages.


LOCATION

The Bonter property comprises part of lots 16 and 17 concession XI on the east boundary of Marmora Township, County of Hastings. It is located about 12 km (7 miles) northeast of Marmora, from which it is accessible by Highway No. 7 and County Road No. 11. A private road trending east from the settlement of Malone crosses the Moira River and gives access to the old quarry workings.

An abandoned rail siding and CNR right-of-way is located less than l km north of Malone, but an active line of the CPR is accessible 5 km south of Marmora. Boat loading facilities are available at Ogden Point, Colborne, on Lake Ontario about 90 km (55 miles) from the property.

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Moira River

150 Acres (mineral rights only)

A

Figure 2

Malone

189 Acres

o

Feet400 u . —l Metres

Bon ter Property


MINING HISTORY

The Bonter property has had an interesting mining history: It is a past producer of both gold and marble. Gold was produced intermittently from 1866 to 1903; marble from the 1930's to the late 1960's.

GOLD

While the earliest mining activity has not been recorded, it is believed that the discovery of gold was made about 1866, and that until 1878 a number of people may have worked the site. In 1878 it is known that a D.E.K. Stewart was working a number of pits and shallow shafts under lease.

From 1890 to 1893 the site was worked by the Crescent Gold Mining Company of Marmora Limited. In addition to numerous pits, two shafts to depths of 20 m and 27 m (65 and 90 feet) were developed. The mine workings were connected by tramway to a ten-stamp mill housed in a 3-storey building and powered by a 90 hp steam boiler.

In 1903 the old pits and openings were being reworked by the Sovereign Gold Mining and Development Corporation of Ontario Limited.

As much as 1,000 ounces of gold may have been recovered overall, atan average ore grade of nearly 0.2 ounces of gold per ton (Gordon et al,1979, p. 37).

MARBLE

Production of marble apparently commenced in the 1930's but had ceased by 1970. No fine filler products were produced; only coarse blocks,

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chips, grit and dust. The small mill building was a wooden frame structure on a concrete base. Only the foundation remains.

The operation was described in 1964 by D.F. Hewitt (1964 p. 30) as follows:

Six small white calcitic marble quarries have been opened on lots 16 and 17, concession XI, Marmora Township near the village of Mal one by W.F. Bonter i Company. The quarries produce man-sized stone for pulp and paper mills, stone for terrazzo chips, chicken grit and dust. The dust is used as an additive for feed formula for poultry and live stock. The chicken grit is produced by crushing the calcitic marble in a jaw crusher and hammer mill and screening over a 3-deck 3-by 8-foot screen. The calcitic marble ranges from fine crystalline to medium crystalline, grey to white in colour. There are some dark amphibolite inclusions in places in the marble. The most northerly quarry is inactive and water-filled. A new quarry measuring 20 by 60 feet with a 12-foot face has been opened just east of the old quarry. The principal quarry now operated is a few hundred feet southeast of the mill in the west side of the marble ridge. The Quarry measures 50 by 35 feet with a 20-foot face. Grey to white, fine to medium crystalline calcitic marble strikes north-south and dips vertically to steeply west. There are prominent closely spaced horizontal and vertical joints which make the stone unsuitable for building stone.


PROSPECTING AND GEOLOGICAL MAPPING

The writer spent several days examining in detail the marble exposures and old gold workings. The general quality of the marble was known from previous surface sampling studies and no new sampling was under taken except by diamond drilling. The report by Grant and Kingston (1984, p. 101-104) contained the results of recent government sampling, confirming the generally favourable quality.

Geological mapping was carried out at a scale of 1:2400 (l inchs200 feet) using an enlarged 1978 aerial photograph from The Ministry of Natural Resources as a base plan. Because of the abundance of outcrops anddistinctive geographic features (eg quarries and road) mapping was carried out by random traversing rather than using a surveyed grid.

Only the area east of the Moira River was mapped in detail. This was the area of the Bonter marble workings. A reconnaissance survey of the 150 acres west of the Moira River and County Road No. 11 revealed only the presence of pink and white rhyolite (or microgranite), part of the Ma!one granite pluton.

A geological map of the Bonter marble area is enclosed as Map l in the pocket of this report.

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GENERAL GEOLOGY

The geology of Marmora Township has been recently completed by Bartlett and Moore (OFR 5537, 1984). The Bonter property lies between the Deloro granite pluton on the east and the Malone granite pluton on the west. Actually the Bonter marble is enclosed by the western edge of the Deloro granite. The Moira River and County Road No. 11 occupy a shallow depression which trends northeast-southwest between the granite bodies in the area between Malone and Deloro. The Bonter marble workings are located on the west facing flank of the Deloro pluton. The more easily weathered marble, flanked on both sides by granite, forms a terrace elevated about 20 m (60 feet) above the Moira River.

Deloro granite is generally a massive, coarse-grained, salmon pink instrusive rock containing accessory black amphibole. On the Bonter property it is sometimes also grey in colour, and appears to grade westward into a fine-grained buff, pink or grey rhyolltic phase.

The Bonter marble zone appears to be completely enclosed by the Deloro granite. The zone is 1,000 m (3,000 feet) long in a northeast- southwest direction and 200 to nearly 300 m wide (600 to 900 feet). It is composed of three marble varieties, all essentially calcitic. The one of principal interest is a massive, fine to medium crystalline rock of brilliant whiteness, containing only rare traces of finely disseminated pyrite (and sphalerite?).

It forms a continuous unit 800 m (2600 feet) long and 60 to 120 m (200 to 400 feet) wide in sharp contact along its western edge with a tongue of Deloro granite. Its eastern edge is a somewhat narrower

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unit of less pure grey-white marble, often containing coarse clots of pale green or white silicate minerals, probably tremolite. Also present in this unit, and typical of the marble exposed in the banks of the nearby Moira River, is a grey-white medium grained marble of rather granular texture, containing accessory phlogopite.

Dikes of dark green medium-grained diabase intrude both the granite and marble, trending either in northerly or easterly directions. These dikes seldom exceed 3 m {10 feet) in thickness and are in sharp contact with their host rocks. Because of a significant pyrite content, these dikes are rusty brown on weathered surfaces. The east wall of the main northerly Bonter quarry is severely dis coloured by a north-trending dike that appears to have limited quarry operations in that direction. Smaller less obvious dikes are also visible in some of the other old quarries.

The same fracture systems seem to have controlled the emplacement of gold-bearing quartz veins, which however seem largely to be restricted to granite host rocks. The main gold workings are located in Deloro granite just northwest of the marble zone. Only a couple of shallow pits were found in marble, and these were in the silicated marble unit east of the high-purity marble zone. However, according to Bartlett and Moore (marginal notes, Map P.2613) the gold is contact-metasomatic in origin, and is characterized by gold-arsenic mineralization with or without magnetite and sulphides primarily in altered carbonate rocks.

In any event the intimate association of granite and marble is more than coincidental in the location of these gold deposits. So too is the unusual purity of the main marble unit, which purification

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appears to be the product of thermal metamorphism imposed by the enclosing Deloro granite intrusive. In this it is consistent with observations of marble purity in close contact with granite elsewhere in the Grenville region of southeastern Ontario.

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DIAMOND DRILLING

While geological mapping was in progress a single hole was drilled during the period November 21 to November 30, 1984. The work was contracted to Eastern Ontario Diamond Drilling Limited, and was performed using A-size drill rods which gave a core diameter of 28 mm {1.1 inches).

The hole was designated 84-1 and was collared about 30 m (100 feet) northeast of the old Bonter plant foundations on the west edge of the quarry road. Because the marble formation dips vertically, the hole was drilled on a shallow angle (300 down from horizontal) on a bearing of 1350 T so as to cut the marble unit as nearly at right angles as possible.

As there were no outcrops in the immediate vicinity of the hole, it was collared close to where we calculated the west contact might be. However, this location proved to be filled by crushed stone and over burden to a depth of about 3 m (10 feet); it was probably used as a loading area by the previous operators. Hence the drill did not enter solid rock until 5.8 m (19 feet) on its drilling angle of 300 .

The drill intersected dense uniform fine to medium grained white marble throughout the entire length of the hole except for a dike of green-black diabase near the mid point and a little altered marble associated with it. A spectrographic analysis of the dike rock revealed no metal content of interest.

A detailed log of the drillcore is appended to this report and illustrated by cross-section in Figure 3. A summary log of the

WESTHOLE EAST

FIGURE 3 - DRILLHOLE SECTION

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drillcore is given in Table 1 along with dry brightness and acid insoluble determinations on the unprocessed composites.

TABLE l

Overburden White Marble Altered Marble DiabaseAltered Marble White Marble

SUMMARY LOG OF DRILLHOLE 84-1

THICKNESS

METRES

5.833.91.7

5.3

0.3

44.5

91.5

FEET

19.0

111.O

5.5

17.5

1.0

146.0

300.0

DRY

BRIGHTNESS

93.06

1 ACID

INSOLUBLE

0.94

93.10 2.58


LABORATORY TESTING

The drillcore was submitted to IMD Laboratories Limited for evaluation as a potential calcium carbonate filler. The core was split lengthwise, then logged and sampled by the writer. Individual samples were limited to about 6 m (20 feet) of core, except where lithologic changes favoured a shorter interval. Half of the drillcore is preserved in the original core trays as a permanent record.

Laboratory testing involved the crushing and grinding of the core samples, and complete chemical analyses. Composites of the marble samples before and after the diabase dike were subjected to benefi cation by various flotation techniques, and combined flotation and high intensity magnetic separation. These were successful in removing trace amounts of silicate and sulphide mineral impurities, and in improving the brightness of the marble product. Dry brightnesses of 95-96 were achieved, comparable to the best commercial products. Acid insoluble levels were reduced to 0.2-0.8 percent. Product recoveries represented about 85 percent of head feed.

The detailed report from IMD Laboratories is enclosed as Appendix 2 to this report. It concludes that the beneficiated marble is suitable for high quality calcium carbonate filler applications.


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QUALITY AND QUANTITY OF MARBLE RESERVES

The marble intersected by drillhole 84-1 is typical of a zone of high purity that has been traced by surface mapping and prospecting over a length of 800 m (2600 feet) and a thickness of 60 m to 100 m (200 to 325 feet). It is shown on Map l in the pocket of this report. The zone dips nearly vertically and continues to an unknown depth in excess of the 45m (150 feet) vertical depth intersected by the inclined drillhole.

The marble is white, occasionally grading to pale grey, fine to medium grained and massive, with only a trace of finely disseminated pyrite. Silicate minerals are not obvious but were reported in trace amounts in the laboratory study. Occasional small patches of brown alteration and staining of the marble is associated with weathering and fractures especially near surface. At deeper levels occasional fractures are distinguished by thin pink-red alteration.

A dike of dark green diabase was intersected over a core length of 5.3 m (17.5 feet) near the mid point in the drillhole. True thick ness of the dike is probably much less. About 2 m (6.5 feet) of the marble has been altered by proximity to the dike, and is chemi cally more dolomitic and siliceous.

Reserves as defined by surface mapping and the single drillhole are calculated to be 10 million tonnes (11 million tons) to a depth of 60 m (200 feet). Allowing 20 percent for quarrying losses and the elimination of dike rocks, recoverable marble reserves are 8 million tonnes (8.8 million tons). Removal of waste rock by selective mining and/or manual or electronic sorting is made easy by its distinctive colour.

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Quality of the marble before and after the dike is outlined in Table 2 and detailed in the attached laboratory report (Appendix 2).

TABLE 2 SUMMARY OF MARBLE QUALITY

Samples l to 6 Samples 9 to 16

Raw marble t tSi02 0.86 1.76Mg O 2.87 2.17

Brightness 93.1 93.1

Flotation productsSi02 0.39 0.58 Mg O 2.74 1.68 Brightness 94.9 96.3

More diamond drilling is necessary to prove the reserves indicated by this study. Further laboratory testing is desirable to determine the optimum beneficiation process.


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SUMMARY AND CONCLUSIONS

In September 1984 the writer acquired an option to the Bonter property, near Marmora, Ontario, an early producer of gold, and more recently a producer of coarse marble products. Subsequently, an agreement was obtained under Ontario's Mineral Exploration Program to assist in the prospecting and geological mapping of the property and in the evaluation of the marble by diamond drilling and laboratory testing.

This work has indicated a vertically dipping zone of high purity white marble 800 m (2600 feet) long and 60 m (200 feet) to 100 m (325 feet) thick. The zone is exposed in the main Bonter quarry and several smaller pits as well as in scattered outcrops, and it was tested in November by an inclined diamond drillhole 91.5 m (300 feet) in length. Estimated potential reserves are 8 million tonnes (8.8 million tons) to a depth of 60 m (200 feet) after allowing 202 for quarrying losses.

The marble is fine to medium grained and unusually uniform and pure, containing only trace impurities of silicate and sulphide minerals. However the zone has been intruded occasionally by narrow dikes of green-black diabase which have caused minor alteration of the adjacent marble. One such dike was intersected near the mid-point of the drillhole.

The raw material intersected by the drillhole averaged 1.3735 Si02 , 2.473; Mg O and 93.1 1 brightness. After flotation the marble product averaged 0.502 Si02 , 2.14 2 Mg O and 95.72 brightness at an 8535 recovery. This quality is comparable to the best commercial calcium


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carbonate products on the market today, and is suitable for all high quality filler uses.

More diamond drilling is necessary to completely define the deposit. And further laboratory testing is needed to optimize the beneficiation process.

March 15, 1985 G. Robert Guillet, M.A., P.Eng. Specialist, Industrial Minerals


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SELECTED REFERENCES

Bartlett, J.R., and Moore, J.M., Jr.1984: Precambrian Geology of Marmora Township,

Hastings County; Ontario Geo!. Survey, OFR5537,

Gordon, J.B., Lovell, H.L., de Grijs, Jan, and Davie, R.F. 1979: Gold Deposits of Ontario, Part 2; Ontario

Geol. Survey, MDC 18, p.37.

Grant, T.W., and Kingston, P.W.1984: Geology and Geochemistry of Grenville Marble

in Southeastern Ontario; Ontario Geol. Survey, OFR5509, p.l01-l04.

Hewitt, D.F.1964: Building Stones of Ontario, Part III Marble;

Ontario Dept. Mines, IMR 16, p.30-33.

DIAMOND DRILLHOLE LOG C OMPANY G. Robert GuilletDRILLING COMPANY COLLAR ELEV. BEARING OF HOLE 1 TOTAL DEPTH

Eastern Ontario Diamond Orillino AX-1.1" diara 135* T l 300 feetDATE STARTED DATE COMPLETED DATE LOGGED DIP OF HOLE

Nov. 21, 1984 Nov. 30, 1984 Dec. 20-28/8* AT COLLAR 30" IATDEPTH

From To

feet

0.0

19.0

35.0

55.0

75.0

95.0

117.0

130.0

135.5

154.0

feet19.0

35.0

55.0

75.0

95.0

117.0

130.0

135.5

154.0

173.0

VISUAL QUALITY

Fair

Good

Good

Good

Good

Fair

Poor

Waste

Excellent

DESCRIPTION

Overburden (10 feet true depth)

White to pale grey medium grained marble with patchesof brown alteration and staining at the top andassociated with several short sections of lost core.Minor pyrite disseminated in darker marble, andoccasional traces of dark green mica (?). About50* of the section is excellent white marble.

Mostly white fine to medium grained dense compactmarble. Slightly grey in first 3 feet. Brown alteredand broken rock 48' to 52', most of which was notrecovered. Trace of pyrite.

White fine grained marble becoming slightly grey insecond half of section. Heavy brown alteration 61'to 62' associated with some chalky white bleachingon either side. Trace of pyrite.

White fine to medium grained marble with a brownaltered section 75.5' to 78.0' (most of which waslost). A 6" patch of opaque white alterationassociated with a pink fracture at 92'. A 4" patchof coarse brown marble at 94'.

White, fine and medium grained marble becomingcoarser and faintly greenish from 110' to 116'.Traces of pyrite in occasional patches. A 4"patch of yellow and red alteration at 104.7'.

White, medium grained, father friable marble withsome yellow and pink-red alteration associated withfractures. About 6" of lost core at 122.5'.

Medium grained marble, altered to pink, red, yellowand opaque white. Maybe somewhat dolomitic andsiliceous.

Medium grained, green black diabase containing muchpyrite and garnet; chalcopyrite visible at 137'. Bothcontacts with marble are sharp. Lower contact isat 40 0 to core axis. Last 12" is pink altered marble.

Uniform fine-grained white marble with a trace ofpyrite in places and several pink hairline features.

Semple Number

BM-1

BH-2

BM-3

BM-4

BH-5

BM-6

BM-7

BM-8

BM-9

PROPERTY NAME HOLE NO.^^ iPAGfBonter, Malone 84-1 j 1

LOCATION OF HOLE PROJECT NO.On west edqe of road, 100 feet north Expn 8M

Of old Plant ' LOGGG fc0 BilletSample Inter**!

From

feet

19.0

35.0

55.0

75.0

95.0

117.0

130.00

135.5

154.0

To

feet

35.0

55.0

75.0

95.0

17.0

30.0

135.5

154.0

173.0

S (m pi* Length

feet

16.0

20.0

20.0

20.0

22.0

13.0

5.5

18.5

19.0

Chem.CaOt

52.2

52.3

52.8

52.0

53.3

51.8

39.5

53.0

analyses of enMgOli

2.75

3.07

3.11

3.52

1.66

3.04

12.6

2.31

SiOt1

1.17

0.81

0.52

0.64

0.82

1.65

2.71

0.76

de roclAl n3i

0.06

0.08

0.03

0.02

0.07

0.06

0.17

0.04

Fe.O,t

0.17

0.14

0.03

0.07

0.08

0.16

0.97

0.03

G.Robert Guillet M. A., P. Eng. - Consulting Geologist, Industrial Minerals - Box 37O, Mount Albert. Ont., LOG IMO - Telephone (416) 473 - 2495

DIAMOND DRILLHOLE LOGDRILLING COMPANY

DATE STARTED DATE COMPLETED

DEPTH From To

feet

173.0

186.0

203.0

220.0

240.0

260.0

280.0

300.0

feet

186.0

203.0

220.0

240.0

260.0

280.0

300.0

VISUAL QUALITY

Fair

Excellent

Good

Good

Good

Good

Good

COLLAR ELEV.

DATE LOGGED

COMPANY

BEARING OF HOLE [TOTAL DEPTH

DIP OF HOLE AT COLLAR lAT

DESCRIPTION

Medium grained white marble with several pale tomedium grey sections. Whiter marble has a greenishcast. Finely disseminated pyrite, the only obviousaccessorysections.

mineral, is more common In the grey

Mostly fine grained becoming medium, white marble withonly the slightest greenish cast in places. Uniform,fine hairline red fractures 192.5' to 193.5'.

Uniform, medium and fine grained, pale greyish marble.Patch ofto 205.4'

dense grey fine grained shaly marble 204.6'. Occasional finely disseminated pyrite in

trace amounts.

Uniform, medium grained, white with just the slightestgreyish or greenish cast 1n places. Trace of pinkalteration associated with fractures at 223.5' and234'.

Uniform white medium grained marble without obviousaccessory minerals. Faintly greenish 243 '-244'.Red hairline fracture at 248.5'.

White medium to coarse grained marble; slightlygreyish 268'-271.5', also 274.6'-275.3'.

White marble varying to slightly grey and green inplaces; medium to coarse grained; a faint grain orfoliation to the rock at about 45C to the coreaxis. Fine disseminated pyrite obvious in the grayersections. A thin pink fracture at 284'.

End of hole.

NOTE: Split drill corestored atDon Mills

and laboratory samples areIMO Laboratories Ltd.. 260 Lesmill Road.

, Ontario.

S

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Semple Number

BM-10

BH-11

BM- 12

BM-13

BM-14

BM-15

BM-16

A

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\ **

1 *

V

PROPERTY NAME

LOCATION OF HOLE

Semple IntervelFrom

feet

173.0

186.0

203.0

220.0

240.0

260.0

280.0

/^^-* ^

^r

G. R.

^

To

feet

186.0

203.0

220.0

240.0

260.0

280.0

300.0

ESS^~sGUILL

^

Semple Length

feet

13.0

17.0

17.0

20.0

20.0

20.0

20.0

CaO

1

52.7

53.2

52.0

54.4

53.3

53.3

54.4

v\^\\

T r" 1m M

\Jy

MoO

t

2.56

2.13

3.52

1.41

1.50

1.67

1.36

HOLE NO. PAGF 2

PROJECT NO.

LOGGED BY

SiO.

X

2.

1.

2.

0.

1.

4.

1.

G.Robert Guillet M. A., P. Eng. - Consulting Geologist, Industrial Minerals - Box 370, Mount Albert, Ont., LOG IMO -Telephone

02

09

29

91

22

29

31

Alp,

1

0.03

0.03

0.11

0.08

0.06

0.04

0.11

Fe Q

li

0.18

0.04

0.22

0.06

0.10

0.10

0.11

(416)473-2495

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I.M.D. Laboratories Ltd.Industrial Minerals Processing 31C12SE**67 63.45M MARMORA

260 Lesmill Road Don Mills, Ontario M3B 2T5 (416)447-8820

OSO

EVALUATION OF A GROUP

OF LIMESTONE DRILL CORE SAMPLES

REPORT 90081 - l

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PREPARED FOR:

Mr. G.R. Guillet Consulting Geologist^

PREPARED BY

J.I.M.D. LABORATORIES LTD,

March 5, 1985

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3IC12SEM67 63.45** MARMORA

TABLE OF CONTENT

SUMMARY

2.O INTRODUCTION

3.0 SAMPLE PREPARATION

4.0 ANALYSIS OF UNPROCESSED DRILL CORE

5.0 DRY BRIGHTNESS ON UNPROCESSED COMPOSITES

6.0 PROCESSING OF COMPOSITE SAMPLES

7.0 TEST RESULTS

8.O CONCLUSIONS

PAGE

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O2OC

LM.D. Laboratories Ltd.

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SUMMARY

Chemical and physical analysis of the drill cores show the

samples to consist of a high quality limestone with the

exception of samples B.M.-7 and B.M. -8. Impurities, while

they vary from sample to sample, are generally low consisting

primarely of silicates, sphalerite and pyrite.

Composites prepared from the crude core and ground to 325

mesh(45 micron) have good dry brightness. Dry brightness and chemical purity can be enhanced by froth flotation and or

high intensity magnetic separation. Froth flotation removes the silicates, sulphides and other iron bearing minerals, while

high intensity magnetic separation removes mineral impurities

that are magnetic or paramagnetic.

Testwork indicates that products produced by froth flotation

have a dry brightness of 95 to 96% as measured by the

tri-stimulus method. Slightly better results were obtained on

a composite consisting of samples B.M. 9 to 16 than a composite

prepared from samples B.M. l to 6.

The untreated composite containing samples B.M. l to B.M. 6

shows a slight buff discoloration which may be caused by weathering of iron bearing minerals. Froth flotation reduces

acid insoluble components to levels ranging from Q.2% to Q.8%.

Beneficated products are of a quality eminently suitable for use

as a mineral filler in paints, plastics, caulks, sealants carpet

backing and other industrial applications for carbonate filler.

They may also be suitable in paper filling and coating.

The testwork has demonstrated that high quality products can be prepared from the samples. The processes employed to . beneficiate the samples have not been fully optimized. It is not unrealistic

to assume that additional testing will further improve product

quality and recovery of saleable products.

-1-LM.D. Laboratories LW.

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2.O INTRODUCTION

During December of 1984, I.M.D. Laboratories Ltd. was engaged by Mr. G.R. Guillet, Consulting Geologist to

evaluate a group of crystaline limestone samples obtained

by Diamond Drilling.

The evaluation was to consist of:

2.1) Determine if the sample material could be

upgraded to a quality consistent with

specifications for calcium carbonate filler

products.

2.2) Evaluate process(es) by which the above

objective could be achieved.

2.3) Identify the nature of the process(es) that resulted in the best product quality.

2.4) Prepare a report, outlining test results

identifying product quality with regards to

chemical purity, dry brightness and percentage

of acid insoluble residue's.

2.5 Testwork to be conducted on composites prepared

from drill cores based on sampling intervals as

selected by Mr. Guillet.

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3.0 SAMPLE PREPARATION

3.1 Splitting of Drill Core

The drill core was split in half with a core

splitter. Half the core was returned to the core boxes, while the other half was stored in containers

denoting individual sample numbers.

3.2 Size Reduction

Each core sample was crushed to *s" using a jaw

crusher followed by crushing half the sample to 20 mesh with a rolls crusher. The: other half of the crushed rock was set aside for future work.

3.3 Sampling

Samples, after crushing to 20 mesh were reduced,

in volume using a riffle to obtain samples for

chemical analysis, determination of dry brightness, acid insoluble residues and preparation of composites.

From these,individual samples of 200 gram were split out and ground to 325 mesh in a ceramic mill with ceramic

grinding media. From these, parts were taken for chemical analysis and dry brightness determinations.

Fifty(50) gram samples were taken from the -20 mesh

products to determine the percentage of acid

insoluble constituants.

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t4.0 ANALYSIS OF UNPROCESSED DRILL CORE

4.

SAMPLE i

B.M.— 1

B.M.-2B.M.-3B.M.-4B.M.-5

B.M.-6

B.M.-7B.M.-9

B.M.-10

B.M.-11B.M.-12B.M.-13

B.M.-14B.M.-15B.M.-16

1 Table #1 gives the chemical individual samples.

TABLE #1

Si02

1.170.810.520.640.821.65 2.710.762.021.092.290.911.224.291.31

A120 3

0.060.080.030.020.070.06 0.170.040.030.030.110.880.060.040.11

CaO

52.252.352.852.053.351.8 39.553.052.753.252.054.453.353.354.4

MgO

2.753.073.113.521.663.04

12.62.312.562.133.521.411.501.671.36

Na20

0.010.020.020.03

^.010.05

0.010.020.020.010.020.03

^.010.010.02

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composition of the

K20 Fe203 *taQ

^.01 00.02 0

*^0.01 0*^0.01 0*^0.01 0*:0.01 0

•^0.01 0•cO. 01 0

^.01 0•CO. 01 0<0.01 00.01 0

*.01 0•CO. 01 00.01 0

.17 0.04

.14 0.01

.03 0.02

.07 0.01

.08 ^.01

.16 0.06

.97 0.21

.03 •cO.Ol

.18 0.01

.04 *^0.01

.22 -cO.Ol

.06 <0.01

.10 ^.01

.10 <0.01

.11 ^.01

Ti02

<0.010.010.010.010.010.01

0.010.01

0.010.010.010.010.010.010.01

W i u n

L.O•^•^•^

43.43.43.43.43.43. 44.44.

42.43.42.43.43.40.43.

1 attOM*

.1M*V

568766 21

8535481

•~*lmm t M

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4.1 Acid Insoluble Residue's Unprocessed Samples

The acid insoluble residues are based on dissolving

50.0 grams of -20 mesh limestone in dilute hydrochloric

acid followed by digesting the solution for 30 minutes at 800C. The following results were obtained.

SAMPLE % ACID INSOLUBLE

B.M.-l 1.04

B.M.-2 0.74

B.M.-3 0.72

B.M.-4 0.80

B.M.-5 1.32

B.M.-6 1.78

B.M.-7 2.66

B.M.-9 1.22

B.M.-10 3.44

B.M.-11 1.76

B.M.-12 4.06

B.M.-13 1.46

B.M.-14 1.98

B.M.-15 4.48

B.M.-16 1.68

4.2 Acid Insolubles on Weighted Composite(Unprocessed)

SAMPLE % ACID INSOLUBLE

Composite 1-6 0.94

Composite 9-16 2.58

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5.0 DRY BRIGHTNESS ON UNPROCESSED COMPOSITES

Dry brightness of composites was determined on samples ground to 99% passing 325 mesh(44 micron)

using the tri-stimulus method of dry brightness

determination.

The following results were obtained.

Composite t

F1LTKK % DRY % * ** BLUE AMBER GREEN BRIGHTNESS WHITENESS YELLOWNISH

Composite-1-6 84.5 88.6 87.8 93.06 93.7 0.052

Ccmposite-9-16 85.0 87.5 87.1 93.10 93.3 0.029

"Snow Flake"*** 89.1 91.7 91.3 95.21 95.5 0.028

* Based on 10 X l/ GREEN FILTER

** Based on AMBER - BLUE FILTER READINGS

GREEN

*** High quality, comnercial product.

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6.0 PROCESSING OF COMPOSITE SAMPLES

Based on microscopic examination of the acid

insoluble constituents, it was decided to explore

froth flotation as the primary technique for upgrading

product quality. A secondary method employed for

improving dry brightness was high intensity magnetic

separation.

A test program was designed to evaluate several potential

flotation reagents and a range of particle size

distributions of the composites.

6.1 Flotation Collectors

Three cationic flotation collectors were

selected as primary collector. These collectors

are primary amines and diamines. Sodium

isobutyl xanthate was employed as a secondary

collector to assist in the flotation of sulphide minerals. Fuel oil was employed as

a regulator. Alcoholic type frothers were used with some collectors to provide better

frothing.

6.2 Magnetic SeparationDry-high intensity "induced roll" magnetic

separation was used as a secondary processing

step. Either prior to, or after flotation. Wet high intensity magnetic separation was not

used on any of the samples. However, wet

magnetic separation is considered applicable

after flotation. It would be most effective at relatively fine particle size.

6.3 Range of Particle Size

Particle sizes , ranging from 20 to 100 mesh "Top Size" were used. Sample of various size distributions were prepared by grinding and

screening.

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7.0 TEST RESULTS

7.1 Series I -20 mesh - Duomac-T Collector

Head Samples

SIZE ACID INSOLUBLE

Composite 1-6 20

Composite 9-16 20

mesh 0.94

mesh 2.58

Flotation Products

Comp.

Comp.Comp.

7.2

l PRODUCT

1-6 Float #1 84%

9-16 Float #1 87.09-16 Float #2 84.6

Magnetic Separation

% 1 WASTE ACID INSOLUBLE

16.0 0.26

13.0 1.08

15.4 0.88

Flotation products were magnetically separated

at a intensity of 14,000 gauss. This separation

was conducted to determine the effect of magnetic

separation on dry brightness.The separation was not optimized as to feed rate

or other separating parameters.

Flotation and separation products were analyzed

for the dry brightness with the following results.

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l•f™ TABLE #2 % DRY BRIGHTNESS

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SAMPLE l DRY BRIGHTNESS*x

Comp. 1-6 Head Sample -20 mesh 93.06

Comp. 1-6 Float #1 -20 mesh 94.22

Comp. 1-6 Float S Magnetic Separation 95.50

Comp. 9-16 Head Sample 93.10

Comp. 9-16 Float 11 95.31

Comp. 9-16 Float #2 95.28

Comp. 9-16 Float #25. Magnetic Separation 96.17

Comp. 9-16 Magnetic Separation Only 94.23

SNOW FLAKE - Commercial Product 95.21

ATOMITE - Commercial Product 96.22

* BY TRI-STIMULUS METHOD.

^ LM.D. Laboratories Ltd.

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7.3 Series II 40 Mesh Head Feed

l

Jl Flotation at 40 mesh with Ces 342 M collector.

m 7 .3.1 Flotation Results

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l Flotation with this type of reagent was not

l successful. Recovery was low and product quality notsatisfactory. Products not further analyzed.

PRODUCT

Corp. 1-6 Float 12Corp. 1-6 Float 13

Corp. 9-16 Float 13Corp. 9-16 Float 14

8178

8485

HASTE ACID INSQLUBU3S

1922

16.15

.78

.72

1.741.70

7.4 Series III 40 Mesh HeadlFlotation at 40 mesh using Araphen E-12 as collector.

PRODUCT MBSTE ACID INSOLUBIES l Ccttp. 9-16 Float 15 86.6 13.4 1.42

f This collector did not provide the required resultsand is not likely to be effective.

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7.5 Series IV 50 Mesh Head Samples

Collector Duomac T-Ethomeen 18/60 combination Xanthate addition. Fuel oil as

regulator.

Head Samples

Composite 1-6

Composite 9-16

-50 Mesh

-50 Mesh

7.5.1 RESULTS

Series IV Flotation Products

PRODUCT

Comp.Oonp.

Comp.Comp.Oonp.

1-61-6

9-169-169-16

FloatFloat

FloatFloatFloat

50 A50 B

505050

AB

86.84.

84.83.82.

57

871

WASTE

1315

151618

.5

.3

.2

.3

.9

ACID

00

000

INSOLUBLE

.38

.16

.74

.84

.72

This reagent combination gave good results with

respect to acid insoluble residues, but at lower

recovery. There is a tendency for fines i.e. -200 mesh material to float along with the waste.

Improvements in recovery are expected by use of

depressants and optimum addition of regulators and

or frothers.

Flotation products were ground to -325 mesh and

analyzed for dry brightness. In addition, head samples and some flotation products were

analyzed for chemical composition.

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*7,5.2 Dry Brightness Analysis Series IV Products

SAMPLE

Camp. 1-6 HeadCorap. 9-16 Head

Comp.1-6 Float50 A

Comp.1-6 Float50 B

Corp. 9-16 Float50

" 50 A

11 50 B

- 50 Mesh Flotation

FILTER % * ** * ***BLUE AMBER GREEN DRY BRIGHTNESS WHITENESS YELLOWISH

85.6 89.9 89.2 93.79 94.4 ,04885.9 88.1 87.5 93.34 93.5 .025

88.9 93.8 92.8 95.00 96.3 0.053

88.6 93.2 92.2 94.88 96.0 0.050

92.3 94.6 94.0 96.51 96.9 0.02491.2 94.0 93.3 96.05 96.6 0.030

91.5 94.2 93.5 96.27 96.7 0.029

* By Tri-Stimulus Method

** Calculated from 10 X \^ GREEN FILTER READING

*** Calculated from AMBER-BLUE FILTER READINGS

These analysis

GREEN

show excellent dry brightness and whitenessand are comparable to commercial grades of calcium carbonate filler products..

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7.5.3 Chemical Analysis of Flotation Products and Head Samples. Series IV

HEAD FLOTATION PRODUCTS

% Corp. 1-6 Conp.9-16 1-6-50 B 9-16-50 B

Si02 0.86 1.76 ' 0.39 0.58

A12 03 0.06 0.07 0.07 0.03

CaO 53.7 54.3 53.8 54.5

MgO 2.87 2.17 2.74 1.68

Na20 0.04 0.04 0.04 0.04

K20 tO. 01 tO. 01 tO.Ol tO. 01

Fe20 3 0.06 0.10 0.07 * 0.03

MnO 0.02 to. 01 0.02 tQ.Ol

TiO o to. 01 tO. 01 tQ.Ol tQ.Ol

P205 0.02 0.02 0.01 0.01

L.O.I 42.5 41.5 42.7 41.9

S 0.03 0.09 0.02 Trace

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7.6 Distribution of Acid Insolubles

Analysis were conducted on the distribution of

acid insolubles in individual size fractions.

This gave the following results.

7.6.1 POMP. #1-6 50 Mesh-Head Sample

SIZE/MESH % INDV. % ACID INSOLUBLE

-50 * 70-70 * 140

- 140

29.027.943.1

1.040.981.28

7.6.2 OQMP. #9-16 50 Mesh-Head Sample

SIZE/MESH % INDV. ACID INSOLUBLE

-50 * 70-70 * 140

- 140

28.225.846.0

2.562.082.82

This shows that acid insoluble constituants are

evenly distributed throughout the size range.

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7.7 Series V Flotation Test - 100 Mesh

Collector Combination of Duomac T and Ethomeen 18/60, Secondary collector, Xanthate 317. Regulator Fuel Oil.

Feed Material for Tests - 100 Mesh

Results

PRODUCT

Camp.Camp.Camp.

1-6 -1009-161-16

-100-100

868987

.2

.0

.2

WASTE

13.11.12.

808

ACID

000

marne

.24

.84

.60

Products were ground to 325 mesh(45 micron) for determination of dry brightness.

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% DRY BRIGHTNESS*- SERIES IV

FILTER * % % BLUE AMBER GREEN BRIGHTNESS WHITENESS YELLOWNISH

Corp. 1-6 -100 88.6 93.0 92.2 95.00 96.0 0.048Comp.9-16 -100 89.6 92.0 91.6 95.40 95.3 0.026Comp.1-16 -100 89.2 92.3 91.7 95.25 95.7 0.029SnowFlake 89.6 91.9 91.6 95.4 95.3 0.025

Results from the -100 mesh flotation show a slight

improvement in product recovery but not in the

percentage acid insolubles. Composite LrlG was prepared

on the basis 40% comp. l-p6 and 60% comp.9-16. Dry

brightness of products compare well with Snowflake. A 20 micron commercial grade calcium carbonate filler.

* By Tri-stimulus Method

~ 15 ~ ^ LM.D. Laboratories Ltd.

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y8.0 CONCLUSIONS

Testwork conducted to date indicates the following:

m 1 ) Products of filler grade quality can be

produced from the samples submitted.

2) Froth Flotation, possibly in combinationm with magnetic separation is required to

achieve high product quality.

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3) The flotation process has not been optimized

with regards to reagent combinations,

addition rate and other variables.

4) It is expected, that with a optimized

flotation procedure, recovery of saleablel products and product quality will be

further improved.

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Site Of Sovereign Stampmill

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Legend

DIABASE , green-black , pyritic

GRANITE , massive pink or grey

RHYOLITE , buff pink or grey

CALCITIC MARBLE' la - white, fine to medium crystalline, trace of pyrite * Ib - white to grey , minor phlogopite 1 le - white to grey , silicate clots

Quarry Opening

Old Gold Shafts And Open Cuts

Waste Rock Pile

Diamond Drillhole 84-1

x^x*"" Foliation , Inclined S Vertical

•"" mm̂ A ssumed Rock Contact

SCALE

O 100 200 300 400 500Feet

O 100 200 l Metres

THE BONIER MARBLE PROPERTYLots 16 And 17, Concession X \ , Marmora Township

Geology By: G.R. Guillet

Drafted By : P. L. Belcourt 1

31C12SE8d67 63.450* MARMORA/300

THE BONIER MARBLE PROPERTY - Ontario

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