Crystal Information - Products Below
Calcite Physical Properties
Calcite is common throughout the world, and it is the main component in limestones and marbles, and most stalactites and stalagmites. Twinning is common, it can also be found as transparent, large, colourless crystals.
Colour varieties are white, colourless, grey, orange, red, honey - brown, blue, green and black, with a white to grey streak. Group CARBONATES, Composition CaCO3, Hardness 3.0, Crystal structure TRIGONAL.