Smoky quartz is just another variety of quartz. The brown, black or smoky gray color is due to exposure to radiation- either natural or artificial at high altitudes, making this gemstone available in Brazil, Colorado, and the Swiss Alps.
Smoky quartz is believed to help reduce stress and fear in uncertain situations.
This is a smoky quartz core that has been carved into a cylindrical shape and fastened with a light fixture beneath. A great way to have beautiful office decor that is also functional!