About gemdatID
Chalcedony (Var: Moss Agate)
Specimen ID:
BB-FA3-91
Gem(s)
Chalcedony
(Var:
Moss Agate
) :
SiO
2
Locality
Mindat locality:
Yellowstone River, Custer County, Montana, USA
Dimensions
23.35mm x ?mm x ?mm
weight: 19.34 carats
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Previous data
Mineral(s)
Moss Agate
Brian Kosnar
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8,544 gemdatids have been issued as of 12th Nov 2025 5:00 am UTC
