Sulfur (Sulphur)

These bright Sicilian sulfurs have an unusually glassy luster as well as hydrocarbon inclusions. When forming on their calcite matrix, the crystals were exposed to oil and bitumen. As a result, they contain these materials inside. This also proves they are indeed natural Sicilian crystals, since these inclusions prove unique to this location. 18.0 x 13.0 x 12.0 cm, Cozzodisi Mine, Sicily, Italy. © Rob Lavinsky, www.iRocks.com. Used with permission.

Article: Sulfur Value, Price, and Jewelry Information

Credit: www.iRocks.com