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Minerals of the Österby pegmatite, Dalarna, Sweden

1949; Taylor & Francis; Volume: 71; Issue: 4 Linguagem: Inglês

10.1080/11035894909453285

0016-786X

Brian Mason, Carroll N. Roberts,

Clay minerals and soil interactions

Abstract The Österby pegmatite is a granite pegmatito which has been worked intermittently for feldspar and quartz. The occurrence of rare-earth minerals was first recorded in 1884 and the mineral thalenite, Y2Si2O7, was originally described from this locality in 1898. The following minerals have been identified from the pegmatite: quartz, albite, muscovite, fluocerite, thalenite, allanite, gadolinite, samarskite, yttrotantalite, xenotime, fluorite, and asphaltite.