Green Lodalite Quartz 9x11-10x14mm Tumble Nugget A Grade - 15-16 Inch Faceted Bicone Pilbara Prase is a chrome-rich

Pilbara Prase is a chrome-rich chert gemstone that originates from the Pilbara region of Western Australia

The image shown has multiple cabochons to give you an idea of the range possibilites of the colors

naturally occurring mineral composed of pure carbon

Gamma ray irradiation

and much of the black Onyx on the market has been artificially colored

Green Lodalite Quartz 9x11-10x14mm Tumble Nugget A Grade - 15-16 Inch Faceted Bicone Pilbara Prase is a chrome-richGreen Lodolite is Quartz with inclusions of sand. These inclusions range broadly in type and color and produce patterns that can look like gardens. This inspired the stones alias, Garden Quartz. Quartz has been highly valued by virtually every civilization throughout history, often used in healing and meditation and as religious objects in funerary rites and to dispel evil.