At-A-Glance
Country of Origin
Contributors
Archibald MacMartin
Photos
Essential Information
Specimen ID
909
Mineral Name
Opal
Mineral Variety
Semiopal
Chemical Formula
SiO2•n(H2O)
Subcollection
Archibald M. MacMartin
Additional Details
Specimen Number
039
Physical Description
Opal, light to dark brown banded, cut and polished section
Geographic Origin
Locality Nickname
Unknown Locality