Green Pyromorphite Crystals. This is a great specimen with quite large, bright green crystals in a cluster on the top and side of the matrix. An eye catching piece with its colourful, forest-like presence at the top of its host rock.
Daoping, Guangxi, China.
4.2cm high x 8cm long x 7cm wide, 193g.
Pb5(PO4)3Cl , Lead Chlorophosphate.
Pyromorphite shares the same structure with apatite and therefore crystals of the two will have similar shapes. Pyromorphite also forms a chemical series with two other minerals. Mimetite (Pb5(AsO4)3Cl) and Vanadinite (Pb5(VO4)3Cl). Green Mimetite or yellow Pyromorphite can make identification between the two difficult, but usually pyromorphite is green and Mimetite is yellow.