ATHENA MINERALOGY |
Mineral: | JOHNSOMERVILLEITE |
---|---|
Formula: | Na8Ca7(Fe2+,Mg,Mn2+)43(PO4)36 |
Crystal System: | Rhombohedral (Trigonal) |
Group: | Fillowite group |
IMA Number: | 1979-032 |
References: | MM 43 (1980), 833 |
Type Locality: | Glen Cosaidh, Loch Quoich, Inverness, Scotland, United Kingdom |
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