This Specimen has been sold.
3.4" High Quality Smoky Quartz Crystal - Brazil
This is a 3.4" long, natural dark smoky quartz crystal cluster from the mines in Brazil. It is in excellent condition with nice terminations. This specimen has not been polished, treated or heated.
Smoky quartz is a grey-brown to black variety of quartz. This common name is derived from from the appearance of smoke within the quartz crystal. Dependent on the location and the chemicals present during formation, smoky quartz can appear opaque black, however it’s typically translucent to some extent. It’s believed that the quartz gains this color from a combination of natural irradiation and aluminum impurities.
Quartz var Smoky
Minas Gerais, Brazil
3.4" long, 1.85" wide