owl  

ATHENA

MINERALOGY

mlevy

Mineral: OPAL
Formula: SiO2.nH2O
Crystal System: Amorphous
Group: Silica group
IMA Number: ?
References: AM 60 (1975), 749; AM 107 (2022), 1353

mlevy

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

mlevy

Send comments on page to mail pp

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