FLINT
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Luster: Nonmetallic |
Lab Book Description: |
Hardness: 7 |
Color black to very dark gray; Opaque to transluscent; Conchoidal fracture; Crypto-crystalline; SG = 2.5 to 2.8 |
Streak: White |
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Appears on these flash cards: hardness of > 5.5 (greater than 5.5); no cleavage; conchoidal fracture; waxy luster; used for making arrowheads
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