Feldspar Group from selected localities.
Norway | |
| [Perthite var: Cryptoperthite] Knut Edvard Larsen observation on material collected july 2013 |
| [Perthite var: Cryptoperthite] Knut Edvard Larsen observation 16-3-2008 |
| [Perthite var: Cryptoperthite] Berge, S. A. (2013):Mineralene i Husebyyåsen feltspatbrudd, Vesterøya, Sandefjord. Norsk Bergverksmuseum Skrifter. 50, 93-99 |
Kjela, Yxney, Østerøya, Sandefjord, Vestfold, Norway