"Freeze-Dried Specimens"

White, fine, massive, opaque to slightly translucent.

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White to gray, medium to coarse-grained, crystalline.

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Bright metallic cubic cleavages; lead ore.

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Feldspar group; white to gray, sodium plagioclase cleavages; some faces may show twinning.

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A textbook example of pure crystalline carbon which is extermely soft.

Feldspar group; good cleavages of pure soda lime feldspar; most show twinning and labradorescence.

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Pure translucent to white, rhombic cleavages, Mohs’ hardness of 3.

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Kaolin is a white clay mineral that has vast industrial uses

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Hemalite is a Massive, dense red to gray, classic example of iron ore.

Coarse, 'salt and pepper': dark pyroxene and light andesine. Provides perfect representation of an intermediate igneous rock.

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