Skjærpemyr mine are the most interesting and richest mine in the Grua District.
The area is protected by law and it is not allowed to collect pieces from rock. Hammering and digging is strictly forbidden.
References:
-Goldschmidt, V.M. (1911): Die Kontaktmetamorphose im Kristianiagebiet . Videnskapsselskapets Skrifter. 1.Mat.-Naturv. Klasse 1911. No 1. Kristiania (in german)
- Folvik, H. (2005): Mineralene på Skjerpemyr. STEIN 32 (1), 4-9 (in norwegian)
- Folvik, H. O. (2008): Nytt om mineraler. Tre nye mineraler fra Skjerpemyr, Grua. STEIN 35 (1): 16 [find and analysis of hetaerolite, hydrohetaerolite & hydrotungstite]
-Raade, G.(1995): Secondary Zn and Cu minerals from contact deposits of the Oslo region, Norway. Bergverksmuseet Skrift nr 9, 18-26
Mineral List:44 entries listed. 42 valid minerals.
The above list contains all mineral locality references listed on mindat.org. This does not claim to be a complete list. If you know of more minerals from this site, please register so you can add to our database!
