Opal
Specimen ID: B5-J5D-W4
Opal : SiO2·nH2O
Mindat locality:
25mm x 20mm x 15mm
weight: 63 carats
Matrix opal
Cabochon cut
Collection and photo Alessio Piccioni
Mineral(s)
8,544 gemdatids have been issued as of 14th Sep 2025 9:32 am UTC