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· Finish: Electroplated with a nickel-free gold plating
Biotite is a name used for a large group of black mica minerals that are commonly found in igneous and metamorphic rocks
It is named for its strikingly beautiful swirling patterns of parallel lines
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Smoky Quartz 10mm Round - 15-16 Inch 12x18-17x30mm · Finish: Electroplated with aSmoky 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.