907 - Opal

At-A-Glance

Country of Origin

Karlovy Vary
Czechia

Contributors

Archibald MacMartin

Photos

Essential Information

Specimen ID

907

Mineral Name

Opal

Mineral Variety

Opal

Chemical Formula

SiO2•n(H2O)

Subcollection

Archibald M. MacMartin
Specimen Number
044

Geographic Origin

Locality Nickname

Carlsbad (Karlovy Vary), Czech Republic

Locality Lat/Long

50.2318521, 12.8719616
Historical Region Name
Bohemia
Geographic Features
Ohře River
Teplá River