Dolomite
0330 Helvite, Dolomite, Calcite, Chamosite, Huanggang (Huanggangliang) Fe-Sn deposit, Hexigten Banner (Keshiketeng Co.), Ulanhad League (Chifeng Prefecture), Inner Mongolia Autonomous Region, China
White dolomite crystals on superb brown helvite crystals.
4707 Rutile, Dolomite, Lengenbach Quarry, Switzerland
Rutile and dolomite, from the famous Lengenbach Quarry, Fäld, Binn Valley, Wallis, Switzerland. Click on the image below for a higher resolution version.
1078 Fluorite, Dolomite, Irvington Quarry, Breckinridge Co., Kentucky, USA
Purple fluorite nestled in amongst dolomite crystals from Liter’s Quarry (Hanson Aggregates Irvington Quarry), Breckinridge Co., Kentucky, USA. While looking at this through my microscope, I assumed it was a cube of fluorite, but the photo shows more detail. It has tried to develop into an octahedron, but has ended...