About gemdatID
Opal
Specimen ID:
BT-3M6-U1
Gem(s)
Opal
:
SiO
2
·nH
2
O
Locality
Mindat locality:
Mexico
Dimensions
weight: 3.21 carats
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Description
Size: 10.9 mm.
Previous data
Mineral(s)
Opal
Michael Gray
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8,544 gemdatids have been issued as of 14th Sep 2025 10:02 am UTC
