• Geology
  • Published 1982

Fluorine end-member micas and amphiboles

@inproceedings{Petersen1982FluorineEM,
  title={Fluorine end-member micas and amphiboles},
  author={Erich U. Petersen and Eric J. Essene and Donald R. Peacor},
  year={1982}
}
The near end-member minerals fluorphlogopite (xF = 0.96) and fluortremolite (xF : 0'82) have been found in Grenville marbles near Balmat, New York. These micas and amphiboles, like other fluorine-rich minerals reported in the literature, are extremely low in iron. The substitution of F for OH is partly responsible for stabilizing these minerals in the granulite facies marbles of the Adirondacks. Fluorine-rich amphiboles and micas are more common than generally recognized. A literature review… CONTINUE READING

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