This Specimen has been sold.
4.8" Smoky Quartz Crystal - Brazil
This is a 4.8" long, natural cluster of smoky quartz crystals from Brazil. The main crystal in the cluster is over one inch thick! The crystals are more cloudy at the base, getting darker near their tips. The color is natural and the crystals have not been heated or treated. There is some slight damage to the termination of this specimen, hence the reduced price for the specimens size.
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.