Aldermanite

From Wikipedia, the free encyclopedia
Jump to navigation Jump to search
Aldermanite
Aldermanite.jpg
General
CategoryPhosphate minerals
Formula
(repeating unit)
[Mg(H2O)6][Na(H2O)2Al3(PO4)2(OH,F)6 · H2O
IMA symbolAdm[1]
Crystal systemMonoclinic
Crystal class2/m - Prismatic
Identification
ColorColorless
TenacityBrittle
Mohs scale hardness2
LusterSub-vitreous, pearly
Density2.1 g cm−1 (calculated)
References[2]

Aldermanite is a rare hydrated phosphate mineral with formula Mg5Al12(PO4)8(OH)22·32H2O.[3][2][4] It is named after Arthur Richard Alderman (1901–1980), Professor of Geology and Mineralogy, University of Adelaide. Its type locality is Moculta Phosphate Quarry (Klemm's Quarry), Angaston, Barossa Valley, North Mount Lofty Ranges, Mount Lofty Ranges, South Australia, Australia.

References[edit]

  1. ^ Warr, L.N. (2021). "IMA–CNMNC approved mineral symbols". Mineralogical Magazine. 85 (3): 291–320. Bibcode:2021MinM...85..291W. doi:10.1180/mgm.2021.43. S2CID 235729616.
  2. ^ a b http://www.mindat.org/min-104.html Mindat
  3. ^ Harrowfield I. R., Segnit E. R. and Watts J. A. 1981: Aldermanite, a New Magnesium Aluminium Phosphate. Mineralogical Magazine, 44(333), 59-62 - [1]
  4. ^ http://www.handbookofmineralogy.org/pdfs/aldermanite.pdf Handbook of Mineralogy