Rocks: Igneous, Sedimentary &

Metamorphic

Rocks: Igneous, Sedimentary &

Metamorphic

Igneous:Compare color & texture Igneous:Compare color & texture

Color:

Felsic vs Mafic

Texture:

Fine vs Coarse

Color: Mafic - Dark color Felsic - Light color

Igneous:Compare color & texture Igneous:Compare color & texture

Texture: (crystal size)CoarseIntrusive - cooled slowly

Fine Extrusive - cooled quickly

Igneous:Compare color & texture Igneous:Compare color & texture

Igneous:Compare color & texture Igneous:Compare color & texture

Rock Identification is: 1 Granite2 Basalt3 Rhyolite

12

3

Sedimentary:Clastic Bioclastic Stratification Sedimentary:Clastic Bioclastic Stratification

Sedimentary:Clastic Bioclastic Stratification Sedimentary:Clastic Bioclastic Stratification

Clastic - Made of Sediments ex: 1 & 2

1 2 4

33

Bioclastic - Has coal or shells ex: 3 & 4

Stratification - Shows layering ex: 2

Sedimentary:Clastic Bioclastic Stratification Sedimentary:Clastic Bioclastic Stratification

1 2 4

33

Rock Identification is: 1 Conglomerate2 Sandstone3 Limestone - Biologic origin4 Coal - Biologic origin

Metamorphic:Foliated vs Nonfoliated Metamorphic:Foliated vs Nonfoliated

Metamorphic:Foliated vs Nonfoliated Metamorphic:Foliated vs Nonfoliated

Foliated - You can see mineral alignment and banding.

Nonfoliated - cannot see any mineral alignment or banding

Metamorphic:Foliated vs Nonfoliated Metamorphic:Foliated vs Nonfoliated

Mineral Identification:

1 Gneiss2 Marble

1 2

The EndThe End