Detailed information
Species
Phenakite, Quartz
Dimensions
48 x 52 x 28
mm
Weight
200 g
Locality
Tangen Feldspar Mine Kragerø, Vestfold og Telemark Norway
Condition
No recorded repairs
The Tangen Feldspar mine is situated on the southern Norwegian coast at Kragerø in Vestfold og Telemark. It was a Quartz and Feldspar mine which worked a amphibolite hosted pegmatite on the western slope of Mount Sjåen. This site sill exists but collecting is forbidden by its owner. Although the mine recorded only twenty-six mineral species (not bad really!), many of these were very rare, making it a fascinating site. Its best-known species is Phenakite, the rare beryllium silicate, which occurs here as dark greyish-green crystals, an unusual colour for the species. This large miniature is a fine example displaying a terminated 3.4 x 2.1 x 1.9 cm Phenakite crystal standing vertically out from a matrix of cryptocrystalline opaque milky Quartz.