Is a hydrated phospate of lead and aluminium with formula PbAl3(PO4)2(OH)5•(H2O) and hardness of 4-5.
It is found in various colors such as white,gray,yellow,blue,greenish and brown.In 2014 it appear on the marked a nice material from China :stalactites/stalagmites covering yellow pyromorphite.The thickness of plumbogummite is usually very thin,hence the size of facetted stones are small.Always translucent to semi-transparent.The stones shows some growing fractures and small cavities,but this is it...Surely a nice addition to any collection!
From the Laohu,Guilin Prefeture,Guanxi Zhuang A.R. China
Size: 5.3x3.5x2.4 mm.
Weight: 0.27 ct.