owl  

ATHENA

MINERALOGY

mlevy

Mineral: CUMMINGTONITE
Formula: ▢Mg7Si8O22(OH)2
Crystal System: Monoclinic
Group: Amphibole supergroup, with (OH,F,Cl) dominant. Mg-Fe-Mn subgroup. Anthophyllite group
IMA Number: 2012 s.p.
References: AM 74 (1989), 1091; HB2/1 (1995); MM 61 (1997), 295; Phys. Chem. Min. 28 (2001), 87; MM 89 (2025), 411
Type Locality: Cummington, Hampshire Co., Massachusetts, USA
Comments: ▢ = vacancy

mlevy

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

mlevy

Send comments on page to mail pp

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