Opal Family
Precious opals with play-of-color and common opals including fire opal.
2Gemstones
Mineral Species
Opal
Formula
SiO₂·nH₂O
Crystal System
Amorphous
Precious opals with play-of-color and common opals including fire opal.
Mineral Species
Opal
Formula
SiO₂·nH₂O
Crystal System
Amorphous
