Photo category: Rocks and Minerals specimen collection
- Photo taken Locality: Greece, Macedonia, Chalkidiki, Chalkidiki
- Photo taken by: Trichas, A.
- Photo taken date: March 2013
Photo of a sample of Galena with Sphalerite. Galena is a lead mineral and it has a black color. Its crystals are usually cubic or octahedral or cubic-octahedral and has a hardness of 2,5. Sphalerite is a zinc mineral with brown-black to brown-yellow color. Its crystals are usually tetrahedral or octahedral. It has hardness of 3,5 to 4. It comes from Chalkidiki, Greece.