Article · Wikipedia archive · Last revised Jul 7, 2026

Aldermanite

Aldermanite is a rare hydrated phosphate mineral with formula Mg5Al12(PO4)8(OH)22·32H2O. 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.

Last revised
Jul 7, 2026
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Aldermanite
General
CategoryPhosphate minerals
Formula[Mg(H2O)6][Na(H2O)2Al3(PO4)2(OH,F)6 · H2O
IMA symbolAdm1
Crystal systemMonoclinic
Crystal class2/m - Prismatic
Identification
ColorColorless
TenacityBrittle
Mohs scale hardness2
LusterSub-vitreous, pearly
Density2.1 g cm−1 (calculated)
References2

Aldermanite is a rare hydrated phosphate mineral with formula Mg5Al12(PO4)8(OH)22·32H2O.324 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

References

  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. 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] Archived 2016-03-03 at the Wayback Machine
  4. https://www.handbookofmineralogy.org/pdfs/aldermanite.pdf Handbook of Mineralogy