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sapphires get their various colors from trace elements
Hematite is black to steel to gray or silver to gray
soft and glassy stone
high-silica content
Smoky Quartz 6mm Star Cut Coin - 15-16 Inch hps_10042023 sapphires get their various colorsSmoky Quartz is a translucent smoky brown or gray variety of Quartz. It ranges from almost completely transparent to an almost opaque brownish to gray crystal. The color of Smoky Quartz is due to natural irradiation and traces of aluminum within the crystal lattice of the stone. Smoky Quartz it the national gem of Scotland, where it was mined since around 300 BCE.
US$ 1415.00
US$ 179.95
US$ 159.95
US$ 1875.00
