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compound microscope


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Quartz(Amethyst)

/www.wardsci.com/images/Quartz(Amethyst).pdf

wardsci.com 800-962-2660 Quartz (variety Amethyst) Si O2 Crystallography: Hexagonal -R;32 (low quartz). Hexagonal; 622 (high quartz). Crystals not common. Usually massive, coarsely crystalline. Physical Properties: Cleavage: Generally none; occasi...

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