828 - Opal

At-A-Glance

Country of Origin

United States

Contributors

Marcus Farr

Photos

Essential Information

Specimen ID

828

Mineral Name

Opal

Mineral Variety

Geyserite

Chemical Formula

SiO2•n(H2O)

Subcollection

Montana Expedition
Specimen Number
091

Geographic Origin

Locality Nickname

Yellowstone National Park, Wyoming

Locality Lat/Long

44.427963, -110.588455
Geographic Features
Yellowstone National Park
Yellowstone Caldera
Snake River Plain