Photo category: Rocks and Minerals specimen collection
- Photo taken Locality: Greece, Macedonia
- Photo taken by: Trichas, A.
- Photo taken date: October 2011
Photo of a sample of Boulangerite, bought in Halkidiki, Greece in 2000. It is a sulphate mineral of lead and antimony. The crystals are needle-like with length up to 1 cm. Its shine is metal silky and the color of gray-dun. It has a hardnes of 2,5 to 3.