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minerals found in the earth’s
FELDSPAR One of the most common minerals found in the earth’s crust Mineral: #1 Color: Pink Streak: White Luster: Nonmetallic Mineral Shows: Cleavage Hardness: on Mohs Hardness Scale
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GALENA Lead Ore – very heavy for its size Mineral: #2
Color: Silver-gray Streak: Dark grey Luster: Metallic Mineral Shows: Cubic cleavage Hardness: Less than 2.5
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CALCITE Has double image & fizzes when HCL is placed on it
Mineral : #3 Color: White to transparent Streak: White Luster: Nonmetallic Mineral Shows: Good Cleavage Hardness: 3 on Mohs Hardness Scale
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FLUORITE Used in toothpaste Mineral: #4
Color: Purple, Green, Colorless Streak: White Luster: Nonmetallic Mineral Shows: Cleavage Hardness: 4 on Mohs Hardness Scale
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GRAPHITE Used in Pencils Mineral: #5 Color: Gray/Silver
Streak: Dark Gray Luster: Metallic Mineral Shows: Cleavage Hardness: Less than 2.5
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SPECULAR HEMATITE Iron Ore Mineral: #6 Color: Shiny silver
Streak: Reddish Brown Luster: Metallic Mineral Shows: Fracture Hardness:
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ALABASTER GYPSUM Used in making drywall Mineral: #7 Color: White
Streak: White Luster: Nonmetallic (pearly) Mineral Shows: Cleavage Hardness: on Mohs Hardness Scale
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MAGNETITE Strongly magnetic Mineral: #8 Color: Black
Streak: Black/green Luster: Metallic Mineral Shows: Fracture Hardness: More than 5.5
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MUSCOVITE MICA Used in Kitchen Countertops Mineral: #9
Color: Light yellow/gold to transparent Streak: White Luster: Nonmetallic (glassy) Mineral Shows: Good Cleavage Hardness: Less than 2.5
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SULFUR Smells like rotten eggs and used in matches Mineral: #10
Color: Yellow Streak: Yellow to white Luster: Nonmetallic (dull) Mineral Shows: Fracture Hardness: to 5.5
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TALC Used in Powders Mineral: #11 Color: Gray/white/dark green
Streak: White Luster: Nonmetallic (pearly) Mineral Shows: Fracture Hardness: on Moh’s Scale
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HALITE Table Salt Mineral: #12 Color: Colorless to white Streak: White
Luster: Nonmetallic (glassy) Mineral Shows: Cubic Cleavage Hardness:
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QUARTZ One of the most common minerals
in the earth’s crust and used in making glass Mineral: #13 Color: Pink Streak: None, harder than the streak plate Luster: Nonmetallic (glassy) Mineral Shows: Fracture (conchoidal) Hardness: on Mohs Scale
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RED HEMATITE Iron Ore Mineral: #14 Color: Reddish/brown/black
Streak: Reddish brown Luster: Nonmetallic (earthy) Mineral Shows: Fracture Hardness: to 5.5
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BIOTITE MICA Used in kitchen countertops Mineral: #15
Color: Brownish/black Streak: Grey Luster: Nonmetallic (pearly) Mineral Shows: Good cleavage Hardness: Less than 2.5
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SELENITE GYPSUM Used to make drywall Mineral: #16
Color: White-Light pink to transparent Streak: White Luster: Nonmetallic Mineral Shows: Cleavage Hardness: 2 on Mohs Scale
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