Hureaulite

Source: Wikipedia, the free encyclopedia.
Hureaulite
2V angle
greater than 60°
Dispersionr<v, very strong[3]
SolubilityEasily soluble in acids.
References[3][4][5][6]

Hureaulite is a

Limousin, France. It is sometimes written as huréaulite, but the IMA does not recommend this for English language text.[7]

A complete series exists from lithiophilite, LiMn2+PO4 to triphylite, LiFe2+PO4, including hureaulite, strengite, FePO4·2H2O, stewartite, Mn2+Fe3+2(OH,PO4)2·8H2O, and sicklerite, (LiMn2+,Fe3+)PO4.[8]

Environment

Hureaulite is a

pegmatites.[6] At the type locality it occurs in a zone of altered triphylite, LiMn2+PO4, in pegmatite. Typically occurs very late in the sequence of formation of secondary phosphate minerals.[9] Associated at the type locality with vivianite, Fe2+3(PO4)2·8H2O; rockbridgeite, Fe2+Fe3+4(PO4)3(OH)5; heterosite, (Fe3+,Mn3+)PO4 and cacoxenite, Fe3+24AlO6(PO4)17(OH)12·17H2O. It can be synthesised;[10] most natural hureaulites are Mn-rich compounds but extensive (Mn,Fe) solution is known for synthetic material.[9]

Localities

The

Limousin, France. Hureaulite is also found in a granite pegmatite known for its phosphates in the Aimorés pegmatite district, at the Cigana claim in Galiléia, Doce valley, Minas Gerais, Brazil, formerly known as the Jocão Mine.[4]

References

  1. S2CID 235729616
    .
  2. ^ Murdoch, Joseph (1942) Contributions to the Crystallography of Hureaulite. American Mineralogist 27: 228
  3. ^ a b Gaines et al (1997) Dana's New Mineralogy Eighth Edition
  4. ^ a b http://www.mindat.org/min-1952.html Mindat.org
  5. ^ Shigley and Brown (1985) American Mineralogist 70:395
  6. ^ a b Roberts, Campbell and Rapp (1990) Encyclopedia of Minerals, 2nd edition
  7. ^ Burke, E. A. J. (2008): Tidying up Mineral Names: An IMA scheme for Suffixes, Hyphens and Diacritical Marks. Mineralogical Record, 39, 134
  8. ^ Murdoch, Joseph (1943) Crystallography of Hureaulite. American Mineralogist 28: 19-24
  9. ^ a b Moore, P B, and Araki, T (1973) Hureaulite: its atomic arrangement. American Mineralogist 58: 302-307.
  10. ^ Gerault, Y, Riou, A, and Cudennec, Y (1987) Acta Crystallographica (C) 43:1829
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