Very rare variety of Pyromorphyte collected in France, in the region of Asprières ( Aveyron).
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Polysphaérite
- Synonym : phosphohedyphane
- Etymology : Its name is due to its spherical shape.
- Discovery: 1849 by The mineralogist Johann August Friedrich Breithaupt
Gemological data
- Chemical formula : (Pb,Ca) 5(PO4)3 Cl
- Hardness (Mohs) : 4
- Density : 6.5 - 7.1
- Group : Phosphates