At-A-Glance
Country of Origin
Contributors
Archibald MacMartin
Photos
Essential Information
Specimen ID
910
Mineral Name
Opal
Mineral Variety
Opal
Chemical Formula
SiO2•n(H2O)
Subcollection
Archibald M. MacMartin
Additional Details
Specimen Number
038
Geographic Origin
Locality Nickname
Unknown Locality