Smoky Quartz 6-7mm Faceted Tyre - 8 Inch Disc When moving through the Earth’s

When moving through the Earth’s atmosphere

It is a particularly unusual gem because it exhibits a special optical property known as "tenebrescence

green and yellow with white and gray inclusions

It is an aluminum borosilicate mixed with iron

Wampum is made from one of the hardest and most beautiful shells in the world: the Northern Quahog

Smoky Quartz 6-7mm Faceted Tyre - 8 Inch Disc When moving through the Earth’sSmoky 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.