"WardsSci000444"

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Ward's® Calcite (Cleavage)

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

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Talc is the softest know mineral with a moh's hardness of 1, and composed of clay.

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

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

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Feldspar group; calcium end member plagioclase crystals in pyroxene matrix.

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