CALCITE - CaCO3 / FLUORITE - CaF2Nice specimen showing Rhombohedral calcite with FLUORITE, CaF2 - Calcium Fluorite. on a Scalenohedral calcite crystal. Specimen is 2-1/2" by 2-1/2" by 2-1/2". Only information I have on this is that it is from Hunan, China.