Crystal Quartz 10mm Round - 15-16 Inch Stone Shungite has been used as

Shungite has been used as a folk medical treatment since the early 18th century

Boulder Opal is a golden-brown to dark brown stone

Canada in 1770 and named for the area

and comes in a range of other colors

Green Aventurine is a green translucent quartz with glimmering metallic inclusions

Crystal Quartz 10mm Round - 15-16 Inch Stone Shungite has been used asCrystal Quartz is a naturally occurring clear and colorless Quartz. It is a crystalline form of Quartz said to have many divine properties including the ability to amplify and radiate the energy put into it and help individuals achieve their goals. Due to its color and clarity, until the 17th century Crystal Quartz was believed to be permanently frozen water.