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ATHENA MINERALOGY |
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ATHENA MINERALOGY |
| Mineral: | PROTOFERROANTHOPHYLLITE |
|---|---|
| Name: | Proto-ferro-anthophyllite |
| Formula: | (Fe2+,Mn2+)2(Fe2+,Mg)5(Si4O11)2(OH)2 |
| Crystal System: | Orthorhombic |
| Group: | Amphibole supergroup, with (OH,F,Cl) dominant. Mg-Fe-Mn subgroup. Anthophyllite group |
| IMA Number: | 2012 s.p. |
| References: | AM 84 (1999), 196; MR 32/5 (2001), 418 |
| Type Locality: | Hirukawa, Gifu, Japan; Cheyenne Mtn area, El Paso Co., Colorado, USA |
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