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Montgomeryite

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Montgomeryite
Montgomeryite found in South Australia
General
CategoryPhosphate mineral
Formula
(repeating unit)		Ca4MgAl4(PO4)6(OH)4·12H2O
IMA symbolMgm
Identification
ColorDark green to light green, colorless, red, yellow
Mohs scale hardness4

Montgomeryite is a phosphate mineral with the chemical formula Ca4MgAl4(PO4)6(OH)4·12H2O. The mineral was discovered in Fairfield, Utah in a variscite nodule. Montgomeryite is a very rare mineral and can only be found in a few places in the world.

References

  1. ^ "Montgomeryite". mindat.org. Retrieved 10 August 2019.
  2. Warr, L.N. (2021). "IMA–CNMNC approved mineral symbols". Mineralogical Magazine. 85: 291–320.
  3. Larsen, Esper S. (1940-05-01). "Overite and montgomeryite: two new minerals from Fairfield, Utah". American Mineralogist. 25 (5): 315–326. ISSN 0003-004X.
  4. "Fairfield Utah Varisite nodules". www.minsocam.org. Retrieved 2019-08-11.
  5. Marty, Joe; Howard, Donald G.; Barwood, Henry (1999-01-20). Minerals of the Utahlite Claim, Lucin, Box Elder County, Utah. Utah Geological Survey. ISBN 9781557916396.


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