GALENA
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Luster: Metallic |
Lab Book Description: |
Hardness: 2.5 |
Color silvery gray; Tarnishes dull gray; Forms cubes and octahedrons; Brittle; Cleavage good in 3 directions, so breaks into cubes; SG = 7.5 to 7.6 |
Streak: Gray to dark gray |
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Appears on these flash cards: metallic luster; high specific gravity; cubic cleavage
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