Economic potential of potassic feldpar-rich gneisses in Tysfjord/ Hamarøy, northern Norway

Potassic feldspar gneiss in the Tysfjord\/Hamarøy area may be potential resource for future exploitation. The rock consists primarily of microcline (up to 84%) and quartz (up to 35%) together with small amounts of plagioclase (1-12%), commonly albite. Accessory minerals include epidote, micas and ma...

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Bibliographic Details
Main Author: Karlsen, Tor Arne
Format: Article in Journal/Newspaper
Language:English
Published: 2000
Subjects:
Online Access:https://hdl.handle.net/11250/2674211