You Searched For: Single Crystals and Gemstones Mineral Specimens
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Diopside
/www.boreal.com/images/Diopside.pdf
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Diopside CaMg Si2O6 (Pyroxene Group) Crystallography:
Monoclinic; 2/m. Crystals prismatic showing square or 8-sided cross section; also granular, massive. Physical Properties: Cleavage: {110}, at 87° and 93°, ...
Quartz(Smoky)
/www.boreal.com/images/Quartz(Smoky).pdf
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Quartz (variety Smoky) Si O2 Crystallography:
Hexagonal -R; 32 (low-quartz.) Hexagonal; 622 (high-quartz.) Crystals are commonly prismatic, with prism faces horizontally striated, and usually terminated by a positive and n...