Minerals/Rocks

Created by raychv119 

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33 terms

Talc

MINERAL; Nonmetallic luster, doesn't scratch a glass plate, Soapy feel, pearly luster, scratched by a fingernail, penny, Color: green-grey-white-silver

Satinspar

MINERAL; AKA GYPSUM; Fibrous habit, doesn't scratch the glass plate, can be scratched by a penny and a fingernail, translucent, silky luster,

Selenite

MINERAL; AKA GYPSUM; No actual color, color comes from tinted matter; transparent, glass like luster, doesn't scratch a glass plate, can be scratched by a penny, and a fingernail

Alabaster

MINERAL; AKA GYPSUM; doesn't scratch a glass plate, can be scratched by penny and a fingernail, looks like make up for really pale people :)

Muscovite

MINERAL; Clear Sheets, non metallic, can't scratch a glass plate, can be scratched by a penny and a fingernail, white streak, transparent-translucent

Biotite

MINERAL; Doesn't scratch a glass plate, can be scratched by a penny and fingernail, black sheets,

Calcite

MINERAL; doesn't scratch a glass plate, *fizzes with HCl, can be scratched by a penny but not a fingernail, rhombic cleavage

Halite

MINERAL; Cubic cleavage, salty taste, doesn't scratch a glass plate, scratched by a penny but not by a finger

Barite

MINERAL; Can't scratch a glass plate, can be scratched by a penny but can't be scratched by a fingernail, ice blue, heavy for its size,

Sphalerite

MINERAL; Can't scratch a glass plate, can be scratched by a penny but not a fingernail, light yellow streak, sulfurous odor

Quartz

MINERAL; conchoidal fracture, can scratch a glass plate, no cleavage, looks like jewelry

Garnet

MINERAL; Non-metallic, scratches a glass plate, no cleavage, dark red or yellow-green crystals, glass like luster

Olivine

MINERAL; Non-metallic, scratches a glass plate, no cleavage, granular habit, green color

Orthoclase

MINERAL; AKA FELDSPAR Non-metallic, scratches a glass plate, pink-white-gray, no striations, right angle fracture

Plagioclase

MINERAL; AKA FELDSPAR, Non-metallic, scratches a glass plate, cleavage, white grey or black; striations

Pyroxene

MINERAL; AKA FELDSPAR, Non-metallic, scratches a glass plate, 2 cleavages near 90 degrees, green-black

Amphibole

MINERAL; Non-metallic, scratches a glass plate, 2 cleavages 124 degrees by 56 degrees

Hematite

MINERAL; can be non metallic and metallic, red-brown streak, can't scratch a glass plate and can't be scratched by a penny

Pyrite

MINERAL; Fools gold, metallic, black streak, golden

Galena

MINERAL; Metallic, black streak, cubic cleavage

Magnetite

MINERAL; Metallic, black streak, magnetic

Pumice

IGENOUS; Pumiceous texture, volcanic origin, felsic composition (light color)

Scoria

IGNEOUS; Scoriaceous texture, volcanic origin, mafic composition (Dark colored)

Obsidian

IGNEOUS; Glassy texture, Volcanic origin, Felsic and intermediate composition (salt and pepper to dark colored)

Porphyritic Rhyolite

IGNEOUS; Porphyritic Texture, Plutonic and Volcanic origin, Felsic composition (light colored)

Granite

IGNEOUS; Phaneritic texture, plutonic origin, felsic composition (light colored)

Gabbro

Phaneritic texture, plutonic origin, mafic composition (dark colored)

Diorite

IGNEOUS; Phaneritic texture, plutonic origin, intermediate composition (salt and pepper)

Peridotite

IGNEOUS; Phaneritic texture, plutonic origin, ultra mafic composition (dark to green)

Pegmatite

IGNEOUS; Pegmatitic texture, plutonic origin, felsic composition (light colored)

Basalt

IGNEOUS; Aphanitic texture, volcanic origin, mafic composition (dark colored)

Porphyritic Andecite

IGNEOUS; Porphyritic texture, plutonic and volcanic origin, intermediate composition (salt and pepper color)

Porphyritic Basalt

IGNEOUS; Porphyritic texture, plutonic and volcanic origin, mafic composition (dark colored)

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