HCCSNORTHWEST COLLEGE PHYSICAL GEOLOGY 1403

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HCCS-NORTHWEST COLLEGEPHYSICAL GEOLOGY 1403

• MINERALS

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GALENA

• PbS LEAD ORE
• METALLIC LUSTER
• CUBIC CLEAVAGE
• GREY BLACK STREAK
• SOFTER GLASS
• HIGH SPECIFIC GRAVITY

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LIMONITE

• Fe2O3 IRON ORE
• NONMETALLIC LUSTER
• FRACTURE
• BROWN STREAK
• SOFTER GLASS

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HEMATITE

• Fe2O3 IRON ORE
• METALLIC LUSTER
• FRACTURE
• RED-BROWN STREAK
• HARDER GLASS

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MAGNETITE

• Fe3O4 IRON ORE
• METALLIC LUSTER
• FRACTURE
• BLACK STREAK
• SLIGHTLY HARDER GLASS
• MAGNETIC

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PYRITE

• FeS2 SULFUR COMP
• METALLIC LUSTER
• FRACTURE
• BLACK STREAK
• HARDER GLASS

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FLUORITE

• CaF2 FLUX
• NONMETALLIC LUSTER
• CLEAVAGE
• PURPLE COLOR
• MOHS HARDNESS - 4

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GYPSUM

• CaSO4 SHEETROCK
• NONMETALLIC LUSTER
• PERFECT CLEAVAGE
• WHITE - TRANSLUCENT
• MOHS HARDNESS - 2

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HALITE

• NaCl TABLE SALT
• NONMETALLIC LUSTER
• PERFECT CLEAVAGE
• WHITE - TRANSPARENT
• SOFTER GLASS

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TALC

• Mg SILICATE
• NONMETALLIC LUSTER
• POOR CLEAVAGE
• WHITE COLOR
• GREASY FEEL
• MOHS HARDNESS - 1

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QUARTZ

• SiO2 SILICA OXIDE
• NONMETALLIC LUSTER
• CONCHOIDAL FRACTURE
• WHITE, PINK, PURPLE
• MOHS HARDNESS - 7

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K-FELDSPAR PLAGIOCLASE

• SILICATE MINERALS
• NONMETALLIC LUSTER
• GOOD CLEAVAGE
• K-FELDSPAR - PINK
• PLAGIOCLASE - WHITE
• MOHS HARDNESS - 6

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BIOTITE MUSCOVITE

• MICA SILICATE FAMILY
• NONMETALLIC LUSTER
• PERFECT CLEAVAGE
• BIOTITE - GLASSY BLACK
• MUSCOVITE - TRANSLUCENT
• SOFTER GLASS

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CALCITE

• CaCO3 LIME
• NONMETALLIC LUSTER
• PERFECT CLEAVAGE
• WHITE, YELLOW, TRANSPARENT
• MOHS HARDNESS - 3

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CLAY

• Al SILICATE
• NONMETALLIC LUSTER
• MICRO CLEAVAGE
• ABSORBS ORGANICS
• EARTHY ODOR
• SOFTER GLASS

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ASBESTOS

• Mg SILICATE
• NONMETALLIC LUSTER
• FIBROUS CLEAVAGE
• LUNG CANCER
• SOFTER GLASS