1) Triclinic mineral 2) Uranium mineral
Found on
https://www.crosswordclues.com/clue/parsonsite
Parsonsite is a lead uranium phosphate mineral with chemical formula: Pb2(UO2)(PO4)2·2H2O. Parsonsite contains about 45% lead and 25% uranium. It forms elongated lathlike monoclinic crystals, radial spherulites, encrustations and powdery aggregates. It is of a light yellow colour. It has a Mohs hardness of 2.5-3 and a specific gravity of 5.72 - 6...
Found on
http://en.wikipedia.org/wiki/Parsonsite
No exact match found.
