Opal : SiO2·nH2O
Mindat locality:
Collected by:
Photo added to mindat.org
“These balls of opal fluoresce a deep green under SW-UV. They were collected on 11/10/2013.”
Jerry Cone - 5th June 2018
No-one has added this to their favourites.
10,444,998 minIDs have been issued as of 7th May 2024 1:08 am UTC