owl  

ATHENA

MINERALOGY

mlevy

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

mlevy

[Mineral Search]     [Abbreviations]     [Pictures]     [Athena]

mlevy

Send comments on page to mail pp

Copyright © 1986, 1994, 2023 ATHENA - Pierre Perroud. All Rights Reserved.