ATHENA MINERALOGY |
Mineral: | RITTMANNITE |
---|---|
Formula: | (Mn2+,Ca)Mn2+(Fe2+,Mn2+)2(Al,Fe3+)2(PO4)4(OH)2.8H2O |
Crystal System: | Monoclinic |
Group: | Jahnsite group. Whiteite subgroup |
IMA Number: | 1987-048 |
References: | CM 27 (1989), 447; HB4 (2000) |
Type Locality: | Mangualde pegmatite, Viseu distr., Beira Alta, Portugal |
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