Beautiful Quartz Specimen ~ Arizona ~ ( 2 ) Included ~

Beautiful Quartz Specimen ~ Arizona ~ ( 2 ) Included ~

12.5 oz ( 2 ) total weight

Quartz

is a hard, vitreous (glass-like) mineral, the most abundant in

Earth's crust, composed of silicon dioxide (SiO2). It comes in various colors,

such as the clear rock crystal, purple amethyst, white yellow citrine, and smoky brown,

due to trace impurities. Identified by its hardness of 7 on the Mohs scale and its

unique curved breakage (conchoidal fracture), quartz forms single crystals with a

hexagonal shape and is a major component of many igneous,

sedimentary, and metamorphic.

** WE HAVE MANY BEAUTIFUL MINERAL SPECIMENS FROM THE USA & AROUND THE GLOBE

MOST ARE FROM OUR VARIOUS TRIPS

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