At-A-Glance
Country of Origin
Valeč
Czechia
Photos
Essential Information
Specimen ID
837
Mineral Name
Opal
Mineral Variety
Hyalite
Chemical Formula
SiO2•n(H2O)
Subcollection
Beck Economic Geology
Additional Details
Specimen Number
100
Notes for Researchers
Sticker 344 and additional ID 1998
Physical Description
Hyalite opal, clear glassy gel-like crust on rhyolite
Geographic Origin
Locality Nickname
Waltsch (Valeč), Czech Republic
Locality Lat/Long
50.1741394, 13.2545762
MinDat Locality URL
Additional Details
Original Attributed Locality
Bohemia
Waltsch
Geographic Features
Doupov Mountains