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About: Härsbacka mine     Goto   Sponge   NotDistinct   Permalink

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Härsbacka mine (Swedish: Härsbacka gruva) is a quartz and feldspar mine. It was once Sweden's foremost quartz mine. The mine was closed in 1946. The quartz and feldspar mined in Härsbacka are the main constituent of a large pegmatite dyke. This pegmatite dyke dips about 60 to 70° to the southeast and has a maximum thickness of 37 m. While quartz and feldspar are mostly mixed, pure zones of either occur. Most feldspar is pink microclineperthite and much lesser amounts are white oligoclase. There are lesser quantities of biotite, garnet, molybdenite and fluorite. About 230,000 tons of quartz have been mined in total from Härsbacka mine.