owl  

ATHENA

MINERALOGY

mlevy

Mineral: GLAUCOPHANE
Name: Γλαυκοφανής
Formula: ▢Na2(Mg3Al2)Si8O22(OH)2
Crystal System: Monoclinic
Group: Amphibole supergroup, with (OH,F,Cl) dominant. Amphibole Na subgroup. Glaucophane group
IMA Number: 2012 s.p.
References: EJM 4 (1992), 171; HB2/1 (1995); EJM 33 (2021), 77
Type Locality: Syra Island, Cyclades Islands, Greece
Comments: ▢ = vacancy
Glaucophane, 6x8cm
Sonoma Co., California, USA
Amphibole bought from Ward's, 1980
Photo and Coll. P. Perroud (now in NHM Geneva).
See also: athena.unige.ch -> mineral pictures

mlevy

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

mlevy

Send comments on page to mail pp

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