Carving: Sardonyx Heart 50

Onyx & Variations
Onyx is the name given to a gem variety of Agate (Chalcedony). Agate is the name given to a family of chemically related stones. There are over thirty distinct varieties of agate making it one of the largest families of stones. All agates are composed of SiO2 They form according to a trigonal crystal structure, and have a hardness of 7 on the Mohs scale.

*As we are consistently receiving new stock in store our staff will intuitively choose the perfect item for you. All images are only an indication of what is available as no two stones are the same*