sign up (free!)
Also on these boards
Calcite with Stibnite Nandan, Dachang Tin area Guanxi, China A bright, lustrous 4 cm crystal (a complex twin) sits on a matrix of stibnite. Some very minor bruising displays very well, and when backlit it really glows. This is from a now classic find from a few years ago, it is a very distinctive Calcite unlike any other location and a very good example for any serious Calcite collector.
Calcite ( Ca CO3) Carbonate mineral Locality: Iraí, Alto Uruguai region, Rio Grande do Sul, South Region, Brazil
Calcite - There are three basic shapes: trigonal prism, scalenohedron, and rhombohedron. The crystals shown here are scalenohedron.