At-A-Glance
Country of Origin
Oslo
Norway
Contributors
I. Th. Rosenquist
Photos
Essential Information
Specimen ID
1654
Mineral Name
Helvite
Chemical Formula
Mn4Be3(SiO4)3S
Additional Details
Specimen Number
008
Physical Description
Tetrahedral crystals with quartz and "nordmarkite" on granite
Geographic Origin
Locality Nickname
Grorud, Oslo, Norway
Locality Lat/Long
59.9596713, 10.8826814