• Geology
  • Published 1981

Alforsite, a new member of the apatite group; the barium analogue of chlorapatite

@inproceedings{Newberry1981AlforsiteAN,
  title={Alforsite, a new member of the apatite group; the barium analogue of chlorapatite},
  author={Nancy G. Newberry and Eric J. Essene and Donald R. Peacor},
  year={1981}
}
Alforsite, ideally Ba,(P04)3Cl, is a new member of the apatite group occurring in contact m.etamorphosed evaporitic rocks from Fresno and Mariposa counties, California, associated wlth fluor~patit: and m~ny. other rare barium minerals previously described by Alfors et al. (1965). It IS optically umaxlal, negative, with W,E = 1.70(1). The density is calculated to be 4.83(2) gm/cm3 for the end member composition. It is hexagonal, space group P63/m, with a = 10.25(1) and c = 7.64(2)A. The… CONTINUE READING

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Citations

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Introduction to Apatites

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Titanian taramellites in western North America

JosN T. Arrons, Aoorp Passr
  • 2007
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