Mineral: | Spinel / Calcite / Fluorapatite
| Chemical Formula: | MgAl2O4 / CaCO3 / Ca5(PO4)3F | Size: | 101,5 x 75,4 x 53,2 Apatite: 38,8 mm | Weight: | | Transparence: | transparent - translucent | Quantity: | | Origin: | Pyan Pyit (Pein Pyit) mine, northeast of Mogok, Burma (Myanmar) | Here you get a rarer paragenesis form the Pyan Gyi mine , normally only spinel and calcite are associated, but here you get on top a big and one small fluorapatite crystal!
The apatite crystal is hiding both ends in matrix and the prism faces disclosing growing marks and good luster. The spinel crystals are mostly macle twins after the spinel law. The big specimen is undamaged while the others have more or less showing a crystalline fracture face. Nevertheless a good reference specimen.
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