2012 BMC AUCTION SPECIMENS - Boston Mineral...

A SAMPLER OF SELECTED

2014 BMC VOICE AUCTION SPECIMENS

Volume 1

Updated 29 December 2013

Spodumene [LiAlSi2O6] , var. Kunzite (the

gem variety of spodumene)

Dana No: 65.01.04.01

Strunz No: 09.DA.30

Urucum mine (Tim mine; Córrego do

Urucum pegmatite), Galiléia, Doce valley,

Minas Gerais, Brazil.

A lovely etched gem crystal from a classic

kunzite locality

Specimen size: 5.9 x 2.0 x 1.2 cm., 17 g.

Donated by the East Coast Gem, Mineral &

Fossil Show

Spodumene var. Kunzite, Brazil

Photograph by Mike Haritos

Spodumene is mined as an ore of lithium. The name

is derived from The Greek "spodoumenos", reduced

to ashes, alluding to the grayish white mass that is

formed when the mineral is ignited.

Calcite, Huanggang Fe-Sn deposit, China

Calcite (Manganoan) – (Ca,Mn)CO3

Dana No: 14.01.01.01

Strunz No: 05.AB.05

Huanggang Fe-Sn deposit (Huanggangliang

Mine), Hexigten Banner (Keshiketeng Co.),

Ulanhad League (Chifeng Prefecture), Inner

Mongolia Autonomous Region, China.

Lovely terminated, pastel-pink, single crystal

that fluoresces a warm pink-orange

Specimen Size:

10.5 x 3.5 x 3.0 cm. , weight: 124 g.


Calcite and rhodochrosite are end members of a

complete solid solution series. Manganoan calcite is a

variety of calcite with an intermediate Mn content.

The intensity of its pink coloration typically increases

with the Mn content. Originally reported from the

Banská Štiavnica Mining District, Slovak Republic.

Mesolite, India

Mesolite

Na2Ca2Al6Si9O30•8(H2O)

Dana No: 77.01.05.04

Strunz No: 09.GA.05

Kannad, Aurangabad District,

Maharashtra, India.

Specimen Size:

Dimensions: 10.4 x 7.0 x 7.0 cm.

Weight: 313 g.


Mesolite is a member of the zeolite

group of minerals. Its name is

derived from the Greek for “middle”,

as its chemical composition is

between that of natrolite and

scolecite.

Fluorite on Dolomite, China

Fluorite - CaF2 Dana No: 09.02.01.01

Strunz No: 03.AB.25

Dolomite - CaMg(CO3)2

Dana No: 14.02.01.01

Strunz No: 05.AB.10

Shambao, Leiyang Co., Hengyang

Prefecture,

Hunan Province, China

Water clear fluorite crystals with

internal purple color zones

Specimen Size

Overall: 7.5 x 5 x 4 cm

Largest crystal: 2.2 cm

Weight: 128 g.

Donated by the East Coast Gem,

Mineral & Fossil Show

Photograph by Nathan Martin

Fluorite is found as a common gangue mineral in

hydrothermal veins, especially those containing

lead and zinc minerals. The species was named in

1797 by Carlo Antonio Galeani Napione from the

Latin, fluere = "to flow" (for its use as a flux).

Brookite, Pakistan

Brookite - TiO2

Dana No: 04.04.05.01

Strunz No: 04.DD.10

Thurdook (Thurdok) Mine, Zard,

Raskoh Mts. Kharan, Balochistan

(Baluchistan), Pakistan.

Translucent red crystal on matrix

from the 2012 find

Specimen Size:

2.3 x 1.1 x 0.2 cm.

Weight: 5g


Brookite is one of the five forms of titanium

dioxide found in nature. The species was named

in 1825 by Serve-Dieu Abailard "Armand" Lévy

in honor of Henry James Brooke (born May 25,

1771 in Exeter, England).

Scolecite, India

Scolecite - CaAl2Si3O10•3(H2O)

Dana No: 77.01.05.05

Strunz No: 09.GA.05

Rahuri, Ahmadnagar District

(Ahmednagar District; Ahmed Nagar

District), Maharashtra, India.

An attractive crystal cluster with

excellent terminations.

Specimen Size:


Weight: 103 g.


Scolecite is a member of the zeolite group. Its

name is derived from the Greek, skolec = 'worm'

in reference to the mineral's reaction to the

blowpipe flame.

Hemimorphite, Yunnan Province, China

Hemimorphite

Zn4Si2O7(OH)2•(H2O)

Dana No: 56.01.02.01

Strunz No: 09.BD.10

Wenshan Mine, Wenshan Co.,

Wenshan Autonomous

Prefecture, Yunnan Province,

China.

Size:

Dimensions: 9.5 x 10.2 4.5 cm.

Weight: 423 g.


Hemimorphite was named in 1853

by Adolph Kenngott in allusion to

the hemimorphic morphology of

the crystals. Many names

previously were assigned to this

species including calamine.

Sphalerite on Pyrite after Pyrrhotite, Kosovo

Sphalerite – (Zn,Fe)S

Dana No: 02.08.02.01,

Strunz No: 02.CB.05a

Pyrite - FeS2

Dana No: 02.12.01.01

Strunz No: 02.EB.05a

Trepč complex, Trepč valley,

Kosovska Mitrovica, Kosovo

Brilliant luster!

Specimen size: 7.2 x 7.1 x 4.4 cm.

Weight: 332 g

Sphalerite, also known as Blende or Zinc Blende, is the major ore of zinc. When pure (with

little iron) it forms clear crystals with colors ranging from pale yellow (known as Cleiophane)

to orange and red shades (known as Ruby Blende). As iron content increases it forms dark,

opaque, metallic crystals (known as Marmatite)


Pyrite named in antiquity from the Greek

"pyr" for "fire", because sparks flew from

it when hit with another mineral or metal.

Ilvaite, Inner Mongolia, China

Ilvaite - CaFe2+Fe3+(Si2O7)O(OH)

Dana No: 56.02.03.03

Strunz No: 09.BE.07

Huanggang Mine, Fe-Sn deposit

(Huanggangliang Mine), Hexigten Banner

(Keshiketeng Co.), Ulanhad League (Chifeng

Prefecture), Inner Mongolia Autonomous

Region, China.

A lustrous, terminated single crystal

Size:

Dimensions: 5.3 x 1.4 x 1.4 cm

Weight: 33 g.


Ilvaite is derived from "Ilva", the old name of

Elba Island, on which the type locality is

situated.

Fluorapophyllite-(K), India

Fluorapophyllite-(K) *

(K,Na)Ca4(Si4O10)2F•8(H2O)

Dana No: 72.03.01.01

Strunz No: 09.EA.15


(Ahmednagar District; Ahmed Nagar

District), Maharashtra, India.

An attractive cluster of light green

crystals

Specimen Size:

3.6 x 3.2 x 2.1 cm.

Weight: 15 g.


Apophyllite was named in 1806 by Rene Just Haüy from the Greek for "away from" (ἀπό, apo)

and "leaf" (φύλλον, phyllos), in allusion to the way it exfoliates upon heating. * The name was

recently revised from apophyllite-(KF) to fluorapophyllite-(K) (Hatert et al,European Journal of

Mineralogy 25, 2013)

Lot of Four Babingtonite Specimens, Massachusetts

Babingtonite

Ca2(Fe2+,Mn)Fe3+Si5O14(OH)

Dana No: 65.04.01.02

Strunz No: 09.DK.05

Localities

Two TN specimens are from Lane

Quarry. West Springfield, MA

1 TN is from Cheapside Quarry (East

Deerfield Quarry; Trew Corp. Quarry),

Deerfield, MA.

1 TN is from West Roxbury Crushed

Stone Quarry (West Roxbury Trap-

Rock Co. West Roxbury (Boston),MA.

Donated by Mike Haritos Photograph by Mike Haritos

Babingtonite is the Massachusetts state mineral. It was Named

after Dr. William Babington (1756 - 1833), Irish physician and

mineralogist, founding member and President (from 1822 to

1824) of the Geological Society of London.

Tourmaline, Quartz & Feldspar, Burma

Pink tourmaline with quartz and

feldspar

Most likely Elbaite or Liddicoatite

Elbaite

− Na(Li, Al)3Al6(BO3)3Si6O18(OH)4

− Dana No: 61.03d.01.08

− Strunz No: 09.CK.05

Liddicoatite

− Ca(Li, Al)3Al6(BO3)3Si6O18(O,OH,F)4

− Dana No: 61.03b.01.02

− Strunz No: 09.CK.05

Momeik Township, Kyaukme

District, Shan State, Burma

(Myanmar).

Specimen Size:

8.9 x 7.4 x 5.8 cm.

Individual xls. From 0.2 to 1.2 cm.

Weight: 422 g.


Tourmaline (synonymous with tourmaline group)

comprises trigonal borosilicates of the cyclosilicate

superclass. The nomenclature was recently revised

(Henry et al., American Mineralogist, 2011).

Fluorapophyllite-(K) & Scolecite, Maharashtra, India

Fluorapophyllite-(K)

(K,Na)Ca4(Si4O10)2F•8(H2O)

Dana No: 72.03.01.01

Strunz No: 09.EA.15

Scolecite

CaAl2Si3O10•3(H2O)

Dana No: 77.01.05.05

Strunz No: 09.GA.05


(Ahmed Nagar District),

Maharashtra, India.

Specimen size:


Weight: 119 g. Photograph by Mike Haritos

Apophyllite was named in 1806 by Rene Just Haüy from the Greek for "away from" (ἀπό, apo)

and "leaf" (φύλλον, phyllos), in allusion to the way it exfoliates upon heating. * The name was

recently revised from apophyllite-(KF) to fluorapophyllite-(K) (Hatert et al,European Journal of

Mineralogy 25, 2013)

Fluorite, England

Fluorite - CaF2

Dana No: 09.02.01.01

Strunz No: 03.AB.25

Rogerley Mine, Rogerley Quarry,

Frosterley, Weardale, North

Pennines, Co. Durham, England,

UK.

Many Rogerley fluorite specimens

are so fluorescent that they change

color when exposed to sunlight.

Specimen size:

7.2 x 5.3 x 5.1 cm., 199 g.

Donated by Spirifer Minerals


The term fluorescence is derived from

fluorite, which will often markedly

exhibit this effect. The element fluorine

also derives its name from fluorite, a

major source for the element.

Galena & Quartz, Bulgaria

Galena - PbS

Dana No: 02.08.01.01

Strunz No: 02.CD.10

Quartz – SiO2

Dana No: 75.01.03.01

Strunz No: 04.DA.05

Krushev dol deposit , Krushev dol

mine, Madan ore field, Rhodope

Mts, Smolyan Oblast, Bulgaria

Superb Galena luster & brilliant

Quartz xls.

Specimen size:

Dimenaiona: 6.8 x 6.8 x 3.4 cm.,

Weight: 281 g. Photograph by Mike Haritos

Galena is a primary ore of lead.

Galena was named by Pliny the Elder

in 77-79 from the Greek "galene"

meaning lead ore

The word "quartz" is derived from the German

word "Quarz" and its Middle High German ancestor

"twarc", which probably originated in Slavic (cf.

Czech tvrdý ("hard"), Polish twardy ("hard")).

Calcite, China

Calcite - CaCO3

Dana No: 14.01.01.01

Strunz No: 05.AB.05

Hunan Province, China

Specimen Size:

27.0 x 14.0 x 8.5 cm.

Weight: 2162 g.

A major cabinet specimen.

Donated by Steve Gerome


Calcite is an important rock forming mineral. It forms in sedimentary deposits as limestone, can be regionally or contact metamorphosed into marbles and rarely forms igneous rocks (carbonatites). It also is a common gangue mineral in hydrothermal deposits. Calcite is highly variable in color and crystal forms, but it is most easily recognized by its reactivity to acids, even weaker acids like vinegar. Calcite can fluoresce in many colors and shades under all wavelengths of ultraviolet light.

Albite var. Pericline w/ Orthoclase var. Adularia

Overgrowths, Acushnet, MA

Adularia - KAlSi3O8

Dana No: 76.01.01.01

Strunz No: 09.FA.30

Albite - NaAlSi3O8

Dana No: 76.01.03.01

Strunz No: 09.FA.35

Adularia, a low temperature

potassium-rich Orthoclase feldspar

is perched epitaxally on Pericline

xls., a variety of sodium rich Albite

feldspar.

Acushnet Quarry (P. J. Keating Q.,

Tilcon Capaldi Q., Warren Brothers

Q., Old Bluestone Q.), Acushnet,

Bristol Co., MA, USA.

Specimen size:

16.0 x 11.0 x 6.0 cm., 839 g

The Acushnet quarry is renowned for its alpine

cleft geology and suite of related minerals. It

has produced “world class” apatite crystals.


Calcite, Hubei, China

Calcite - CaCO3

Dana No: 14.01.01.01

Strunz No: 05.AB.05

Hubei Province,

China

Calcite crystals on matrix

Specimen Size

Overall: 18 x 11 x 5 cm

Largest crystal: 4 cm

Weight: 1262 gm


Calcite was named as a mineral in ancient times (AD79) by

Gaius Plinius Secundus (Pliny the elder). The name is derived

from Calx, Latin for lime.

Half Quartz Geode, Brazil

Cut and polished quartz geode

Quartz - SiO2

Dana No: 75.01.03.01

Strunz No: 04.DA.05

Minas Gerais, Brazil

The interior features a quartz druse

with a light blue tint

Specimen size:

15.5 x 13.2 x 7.2 cm., weight: 1,972 g.

Anonymous donor


Quartz crystals in geodes are formed by

a multistage process. Groundwater or

hydrothermal waters scavenge silica as

they percolate through sediments,

sedimentary rocks, lavas, or volcaniclastic

rocks. The geodes found in Minas Gerais

typically formed in gas cavities in basalt

lavas.

Chalcopyrite, Missouri

Chalcopyrite - CuFeS2

Dana No: 02.09.01.01

Strunz No: 02.CB.10a

Brushy Creek Mine, Greeley, Viburnum

Trend District, Reynolds Co., Missouri,

USA.

Specimen Size:

5.4 x 4.7 x 2.7 cm.

Weight: 95 g.

Sparkling xls. of iridescent, luminous

colors.


Chalcopyrite was named in 1725 by Johann

Friedrich Henckel from the Greek "chalkos",

copper, and "pyrites", strike fire.

Barite, Sardinia, Italy

Barite - BaSO4

Dana No: 28.03.01.01

Strunz No: 07.AD.35

(Note: the official IMA-approved spelling of

this mineral is 'baryte'. )

Villamassargia, Carbonia-Iglesias

Province, Sardinia, Italy.

A sharp, doubly-terminated crystal

Specimen size:


Weight; 93 g.


Baryte is derived from the Greek "barys" -

heavy, in allusion to its high specific gravity.

Baryte itself is generally white or colorless,

and is the main source of barium.

Baryte and celestine form a solid solution

(Ba,Sr)SO4.

Hubnerite [MnWo4] & Quartz [SiO2], Peru

Hubnerite - MnWO4

Dana No: 48.01.01.01,

Strunz No: 04.DB.30

Pasto Bueno District, Pallasca Province,

Ancash Department, Peru.

Specimen size:


Weight: 114 g

Seldom does a Hubnerite specimen

reveal the rich, dark red color seen here.

Donated by the East Coast Gem Mineral

& Fossil Show


Hubnerite is a member of the Wolframite

Group. It was named in 1865 by Eugene N.

Riotte (native of Elberfeld, Germany) for the

German mining engineer and metallurgist,

Friedrich Adolph Hübner [born May 17,

1830?, Koenigsberg, East Prussia (Germany).

Scapolite, New York

Scapolite - (Na,Ca)4[Al3Si9O24]Cl

Dana No: 76.03.01.00

Strunz No: 09.FB.15

St. Lawrence County, NY

A terminated single crystal

Specimen Size:


Weight: 148 g

Donated by Dr. Bernie Wuensch


The term, scapolite, generally refers to just the marialite-meionite series, not the full scapolite group, and thus excludes silvialite. It is used as a generic term when the exact chemical composition in the solid solution series has not been determined Named in 1800 by José Bonifácio de Andrada e Silva from the Greek ζκαποζ meaning "a shaft" in allusion to the long prismatic habit of the crystals

Rosasite, Mexico

Rosasite - (Cu,Zn)2(CO3)(OH)2

Dana No: 16a.03.01.01

Strunz No: 05.BA.10

Ojuela Mine, Mapimí, Mun. de

Mapimí, Durango, Mexico.

Specimen Size:


Weight: 303 g.


Rosasite is a secondary mineral found in the oxidation zone of copper-zinc deposits. It’s Cu:Zn ratio is near 3:2.

It was named in 1908 by Domenico Lovisato after its discovery locality, the Rosas Mine, Sulcis, Sardinia, Italy

Silver - Ontario, Canada

Silver – Ag

Dana No: 01.01.01.02

Strunz No: 01.AA.05

O'Brien Mine, Coleman Township, Cobalt area,

Cobalt-Gowganda region, Timiskaming District,

Ontario, Canada.

Specimen Size:


Weight: 315 g



The name comes from the Old English word, "seolfor",

whose original meaning is lost; The chemical element

abbreviation Ag comes from the Latin word

"argentum", meaning silver.

The O’Brien mine was the longest continuously

operating mine in the Cobalt area (1905-1967). It

was developed through 5 shafts and over 16 miles of

drifts, cross-cuts, and raises.

Bismuth (Synthetic), Germany

Bismuth – Bi

A member of the arsenic group

Dana No: 01.03.01.04

Strunz No: 01.CA.05

Grown in Germany.

The iridescent color of this attractive

group of hoppered bismuth crystals

is the result of a thin oxide layer on its

surface.

Specimen size:


Weight: 234 g.

Anonymous donor


As a chemical element Bismuth was

officially discovered in 1753 by French

scientist Claude Geoffroy.

The origin of the name comes from the

German words Weisse Masse meaning

white mass.

QUARTZ var. CHALCEDONY (Agate)

Quartz - SiO2

Dana No: 75.01.03.01

Strunz No: 04.DA.05

Fish: 13.0 x 8.0 x 3.2 cm., 107 g

Base: 16.0 x 12.5 x 8.2 cm., 315 g

The base is agatized coral.

The green grass emanating from the

base is a form of Jade. (Jadeite?)



Chalcedony is a translucent quartz and

it is called Agate when it is banded.

Hardstone carving is a general term in art

history and archaeology for the carving

for artistic purposes of semi-precious

stones, such as jade, clear quartz, agate,

onyx, jasper, serpentine or carnelian, and

for an object made in this way.

Lot of 4 Prehnite Specimens, Connecticut

Prehnite - Ca2Al2Si3O10(OH)2

Dana No: 72.01.03.01

Strunz No: 09.DP.20

O & G Southbury Quarry

(Silliman Quarry; O & G No. 2

Quarry) Southbury, CT.

4 specimens each approx. 6.5

x 5.0 x 3.0 cm. Some with

minor Apophyllite xls.

Donated by Mike Haritos


Prehnite was named in 1788 by

Abraham Gottlieb Werner in honor

of Colonel Hendrik von/van Prehn

(1733-1785), governor of the Dutch

colony at the Cape of Good Hope,

South Africa. He also was a

naturalist & mineral collector and is

credited with discovering the

mineral in 1774.

Rhodochrosite, Colorado

Rhodochrosite - MnCO3

Dana No: 14.01.01.04

Strunz No: 05.AB.05

Specimen Size:


weight: 343 g.

Sunnyside Mine group (American Tunnel Mine;

American Tunnel; Gold King Mine; Washington

Mine; Belle Creole; Gold Prince; Brenneman

Mine; Mogul Mine), Bonita Peak, Gladstone,

Eureka District, San Juan Co., Colorado

Donated by STONETRUST


Rhodochrosite was named in 1813 by Johann Friedrich Ludwig Hausmann from the Greek ρόδο,

"rose", and χρώς, "coloring", referring to its color. It commonly occurs as a primary gangue

mineral in moderate- to low-temperature hydrothermal veins, also in high-temperature

metasomatic deposits and sedimentary manganese deposits or as a late stage hydrothermal

mineral in pegmatites, especially lithiophilite-bearing ones

Quartz, Switzerland

Quartz var. Smoky - SiO2

Dana No: 75.01.03.01

Strunz No: 04.DA.05

Goschernalp, Kanton Uri,

Switzerland.

Specimen Size


Weight: 166 g.

Donated by Mike Haritos


Quartz has been known and appreciated since

pre-historic times. The most ancient name

known is recorded by Theophrastus in about

300-325 BCE, κρύσταλλος or kristallos. The

varietal names, rock crystal and bergcrystal,

preserve the ancient usage. The root words

κρύοσ signifying ice cold and στέλλειυ to

contract (or solidify) suggest the ancient belief

that kritallos was permanently solidified ice.

2012 BMC AUCTION SPECIMENS - Boston Mineral...

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