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KAl2(PO4)2(OH,F) · 4H2O
Colourless, white, greenish yellow; colourless in transmitted light.
Vitreous, Silky
Specific Gravity:
2.47 (Calculated)
Crystal System:
After the type locality at Minyulo Well, Dandaragan, Western Australia, Australia.
This page provides mineralogical data about Minyulite.

Hide all sections | Show all sections

Classification of MinyuliteHide

Approved, 'Grandfathered' (first described prior to 1959)

D : Phosphates, etc. with additional anions, with H2O
H : With large and medium-sized cations, (OH, etc.):RO4 < 1:1

11 : (AB)3(XO4)2Zq·xH2O

22 : Phosphates, Arsenates or Vanadates with other Anions
1 : Phosphates, arsenates or vanadates with fluoride

Physical Properties of MinyuliteHide

Vitreous, Silky
Lustre silky in aggregates.
Colourless, white, greenish yellow; colourless in transmitted light.
3½ on Mohs scale
2.47 g/cm3 (Calculated)

Optical Data of MinyuliteHide

Biaxial (+)
RI values:
nα = 1.531 nβ = 1.534 nγ = 1.538
Measured: 70° , Calculated: 82°
Max Birefringence:
δ = 0.007
Image shows birefringence interference colour range (at 30µm thickness)
and does not take into account mineral colouration.
Surface Relief:
relatively weak

Chemical Properties of MinyuliteHide

KAl2(PO4)2(OH,F) · 4H2O
IMA Formula:
KAl2(PO4)2F · 4H2O

Crystallography of MinyuliteHide

Crystal System:
Class (H-M):
mm2 - Pyramidal
Space Group:
Cell Parameters:
a = 9.34 Å, b = 9.74 Å, c = 5.52 Å
a:b:c = 0.959 : 1 : 0.567
Unit Cell V:
502.16 ų (Calculated from Unit Cell)
Radiating fibrous to prismatic crystals, elongated [001] with {110} and {111} terminations. Commonly in subparallel growth or as spherules.

Type Occurrence of MinyuliteHide

Place of Conservation of Type Material:
Western Australian Museum, Perth, Australia: #M68.1991, #CT S2034. The Natural History Museum, London, England: #1933,84. The U.S. National Museum of Natural History, Washington, D.C., USA: #96769.
Geological Setting of Type Material:
Weathered glauconitic phosphatic ironstone.
Associated Minerals at Type Locality:

Other Language Names for MinyuliteHide

Simplified Chinese:水磷钾铝石

Common AssociatesHide

Associated Minerals Based on Photo Data:
Aldermanite21 photos of Minyulite associated with Aldermanite on mindat.org.
Sincosite14 photos of Minyulite associated with Sincosite on mindat.org.
Limonite3 photos of Minyulite associated with Limonite on mindat.org.
Variscite3 photos of Minyulite associated with Variscite on mindat.org.
Quartz3 photos of Minyulite associated with Quartz on mindat.org.
Fluellite2 photos of Minyulite associated with Fluellite on mindat.org.
Crandallite1 photo of Minyulite associated with Crandallite on mindat.org.
Metavariscite1 photo of Minyulite associated with Metavariscite on mindat.org.
Graphite1 photo of Minyulite associated with Graphite on mindat.org.
Wavellite1 photo of Minyulite associated with Wavellite on mindat.org.

Related Minerals - Nickel-Strunz GroupingHide

8.DH.10LeucophosphiteKFe3+2(PO4)2(OH) · 2H2OMon. 2/m : P21/b
8.DH.10Spheniscidite(NH4,K)(Fe3+,Al)2(PO4)2(OH) · 2H2OMon.
8.DH.10TinsleyiteKAl2(PO4)2(OH) · 2H2OMon.
8.DH.15Jahnsite-(CaMnFe){Ca}{Mn2+}{Fe2+2}{Fe3+2}(PO4)4(OH)2 · 8H2OMon. 2/m : P2/b
8.DH.15Jahnsite-(CaMnMg){Ca}{Mn2+}{(Mg,Fe2+)2}{Fe3+2}(PO4)4(OH)2 · 8H2OMon. 2/m : P2/b
8.DH.15Jahnsite-(CaMnMn){Ca}{Mn2+}{Mn2+2}{Fe3+2}(PO4)4(OH)2 · 8H2OMon. 2/m : P2/b
8.DH.15KeckiteCaMn2+Fe3+2Fe3+2(PO4)4(OH)3(H2O)7Mon. 2/m : P2/b
8.DH.15Rittmannite{(Mn2+,Ca)}{Mn2+}{(Fe2+,Mn2+,Mg)2}{(Al,Fe3+)2}(PO4)4(OH)2 · 8H2OMon.
8.DH.15Whiteite-(CaFeMg){Ca}{(Fe2+,Mn2+)}{Mg2}{Al2}(PO4)4(OH)2 · 8H2OMon. 2/m : P21/b
8.DH.15Whiteite-(CaMnMg){Ca}{Mn2+}{Mg2}{Al2}(PO4)4(OH)2 · 8H2OMon. 2/m
8.DH.15Whiteite-(MnFeMg){(Mn2+,Ca)}{(Fe2+,Mn2+)}{Mg2}{Al2}(PO4)4(OH)2 · 8H2OMon. 2/m : P21/b
8.DH.15Jahnsite-(MnMnMn){Mn2+}{Mn2+}{Mn2+2}{Fe3+2}(PO4)4(OH)2 · 8H2OMon.
8.DH.15Kaluginite(Mn2+,Ca)MgFe3+(PO4)2(OH) · 4H2OOrth.
8.DH.15Jahnsite-(CaFeFe){Ca}{Fe2+}{Fe2+2}{Fe3+2}(PO4)4(OH)2 · 8H2OMon.
8.DH.15Jahnsite-(NaFeMg)NaFe3+Mg2Fe3+2(PO4)4(OH)2 · 8H2OMon. 2/m : P2/b
8.DH.15Jahnsite-(NaMnMg){Na}{Mn3+}{Mg2}{Fe3+2}(PO4)4(OH)2 · 8H2OMon. 2/m : P2/b
8.DH.15Jahnsite-(CaMgMg){Ca}{Mg}{Mg2}{Fe3+2}(PO4)4(OH)2 · 8H2O
8.DH.20Manganosegelerite(Mn2+,Ca)(Mn2+,Fe2+,Mg)Fe3+(PO4)2(OH) · 4H2OOrth. mmm (2/m 2/m 2/m) : Pbca
8.DH.20OveriteCaMgAl(PO4)2(OH) · 4H2OOrth. mmm (2/m 2/m 2/m) : Pbca
8.DH.20SegeleriteCa2 Mg2 Fe3+2(PO4)4(OH)2 · 8H2OOrth. mmm (2/m 2/m 2/m) : Pcca
8.DH.20WilhelmvierlingiteCaMnFe3+(PO4)2(OH) · 2H2OOrth.
8.DH.20JuonniiteCaMgSc(PO4)2(OH) · 4H2OOrth.
8.DH.25CalcioferriteCa2Fe3+2(PO4)3(OH) · 7H2OMon. 2/m : B2/b
8.DH.25KingsmountiteCa4(Fe2+,Mn2+)Al4(PO4)6(OH)4 · 12H2OMon. 2 : B2
8.DH.25MontgomeryiteCa4MgAl4(PO4)6(OH)4 · 12H2OMon. 2 : B2
8.DH.25ZodaciteCa4Mn2+Fe3+4(PO4)6(OH)4 · 12H2OMon.
8.DH.30ArseniosideriteCa2Fe3+3(AsO4)3O2 · 3H2OMon. 2/m : B2/b
8.DH.30KolfaniteCa2Fe3+3O2(AsO4)3 · 2H2OMon.
8.DH.30MitridatiteCa2Fe3+3(PO4)3O2 · 3H2OMon. 2/m : B2/b
8.DH.30PararobertsiteCa2Mn3+3(PO4)3O2 · 3H2OMon. 2/m : P21/b
8.DH.30RobertsiteCa2Mn3+3(PO4)3O2 · 3H2OMon. m : Bb
8.DH.30Sailaufite(Ca,Na,☐)2Mn3+3(AsO4)2(CO3)O2 · 3H2OMon.
8.DH.35MantienneiteKMg2Al2Ti(PO4)4(OH)3 · 15H2OOrth.
8.DH.35PaulkerriteK(Mg,Mn2+)2(Fe3+,Al,Ti,Mg)2Ti(PO4)4(OH)3 · 15H2OOrth. mmm (2/m 2/m 2/m) : Pbca
8.DH.35Benyacarite(H2O,K)2(Mn2+,Fe2+)2(Fe3+,Ti)2Ti(PO4)4(O,F)2 · 14H2OOrth. mmm (2/m 2/m 2/m) : Pbca
8.DH.40XanthoxeniteCa4Fe3+2(PO4)4(OH)2 · 3H2OTric. 1 : P1
8.DH.45MahnertiteNaCu3(AsO4)2Cl · 5H2OTet. 4/mmm (4/m 2/m 2/m) : I4/mmm
8.DH.50AndyrobertsiteKCdCu5(AsO4)4(H2AsO4) · 2H2OMon.
8.DH.50CalcioandyrobertsiteKCaCu5(AsO4)4(H2AsO4) · 2H2OMon. 2/m : P21/m
8.DH.55EnglishiteK3Na2Ca10Al15(PO4)21(OH)7 · 26H2OMon. 2/m
8.DH.60BouazzeriteBi6(Mg,Co)11Fe3+14(AsO4)18(OH)4O12 · 86H2OMon. 2/m

Related Minerals - Hey's Chemical Index of Minerals GroupingHide

22.1.1AmblygoniteLiAl(PO4)FTric. 1 : P1
22.1.2LacroixiteNaAl(PO4)FMon. 2/m : B2/b
22.1.3NatrophosphateNa7(PO4)2F · 19H2OIso. m3m (4/m 3 2/m) : Fd3c
22.1.5NacaphiteNa2Ca(PO4)FMon. 2/m : P21/b
22.1.6ArctiteNa2Ca4(PO4)3FTrig. 3m (3 2/m) : R3m
22.1.9FluorapatiteCa5(PO4)3FHex. 6/m : P63/m
22.1.10HerderiteCaBePO4(F,OH)Mon. 2/m
22.1.11IsokiteCaMg(PO4)FMon. 2/m : B2/b
22.1.14FluelliteAl2(PO4)F2(OH) · 7H2OOrth. mmm (2/m 2/m 2/m) : Fddd
22.1.16MoriniteNaCa2Al2(PO4)2(OH)F4 · 2H2OMon. 2/m
22.1.18FluorstrophiteSrCaSr3(PO4)3FHex. 6/m : P63/m
22.1.20VäyryneniteMn2+Be(PO4)(OH,F)Mon. 2/m : P21/b
22.1.22Wagnerite(Mg,Fe2+)2(PO4)FMon. 2/m : P21/b
22.1.23Triplite(Mn2+,Fe2+)2(PO4)(F,OH)Mon. 2/m
22.1.25Zwieselite(Fe2+,Mn2+)2(PO4)FMon. 2/m : P21/b
22.1.26McauslaniteFe3Al2(PO4)3(PO3OH)F · 18H2OTric.
22.1.28SvabiteCa5(AsO4)3FHex. 6/mmm (6/m 2/m 2/m) : P63/mmc
22.1.29TilasiteCaMg(AsO4)FMon. m : Bb
22.1.30Johnbaumite-MCa5(AsO4)3OHMon. 2/m : P21/m
22.1.31DurangiteNaAl(AsO4)FMon. 2/m : B2/b

Other InformationHide

Soluble in hot concentrated acids and in warm dilute NaOH.
Health Risks:
No information on health risks for this material has been entered into the database. You should always treat mineral specimens with care.

References for MinyuliteHide

Reference List:
Sort by Year (asc) | by Year (desc) | by Author (A-Z) | by Author (Z-A)
Simpson and Le Mesurier (1933) Journal of the Royal Society of Western Australia: 19: 13.
American Mineralogist (1933): 18: 512 (abstract).
Spencer, L.J., F.A. Bannister, M.H. Hey, and H. Bennett (1943) Minyulite (hydrous K-Al fluophosphate) from South Australia. Mineralogical Magazine, 26, 309–314.
Palache, C., Berman, H., & Frondel, C. (1951), The System of Mineralogy of James Dwight Dana and Edward Salisbury Dana, Yale University 1837-1892, Volume II. John Wiley and Sons, Inc., New York, 7th edition, revised and enlarged, 1124 pp.: 970.
Kampf, A.R. (1977) Minyulite: its atomic arrangement. American Mineralogist: 62: 256–262.
Menchetti, S. and C. Sabelli (1981) Minyulite, associated with fluellite, from Pereta, Tuscany, Italy. Neues Jahrbuch für Mineralogie, Monatshefte (1981): 11: 505-510.

Internet Links for MinyuliteHide

Localities for MinyuliteHide

This map shows a selection of localities that have latitude and longitude coordinates recorded. Click on the symbol to view information about a locality. The symbol next to localities in the list can be used to jump to that position on the map.

Locality ListHide

- This locality has map coordinates listed. - This locality has estimated coordinates. ⓘ - Click for further information on this occurrence. ? - Indicates mineral may be doubtful at this locality. - Good crystals or important locality for species. - World class for species or very significant. (TL) - Type Locality for a valid mineral species. (FRL) - First Recorded Locality for everything else (eg varieties). Struck out - Mineral was erroneously reported from this locality. Faded * - Never found at this locality but inferred to have existed at some point in the past (eg from pseudomorphs.)

All localities listed without proper references should be considered as questionable.
  • Western Antarctica
    • Antarctic Peninsula
      • South Shetland Islands
Anthony, J.W., Bideaux, R.A., Bladh, K.W., and Nichols, M.C. (2000) Handbook of Mineralogy, Volume IV.
  • Queensland
    • Logan City Shire
Murray, C G (1973): Fluellite and Minyulite from Wolffdene, near Beenleigh, Queensland - Geological Survey of Queensland, Government Mining Journal August 1973, No.862 pp 271-274
  • South Australia
    • Mt Lofty Ranges
      • North Mt Lofty Ranges
        • Barossa Valley
          • Angaston
Segnit, E. R., Watts, J. A. & Peisley, V. (1981): Mineralogy of the rock phosphate deposit at Moculta, South Australia. Austral. Mineral. 1 (35), 179-186.; Harrowfield, I. R., Segnit, E. R., & Watts, J. A. (1981). Aldermanite, a new magnesium aluminium phosphate. Mineralogical Magazine, 44(333), 59-62.
Mills, S. J., Groat, L. A., Wilson, S. A., Birch, W. D., Whitfield, P. S. & Raudsepp, M. (2008): Angastonite, CaMgAl2(PO4)2(OH) 4·7H2O, a new phosphate mineral from Angaston, South Australia, Mineralogical Magazine. 72 (5): 1011–1020; Francis, G.L., Peisley, V., 2012. Minerals from Penrice quarry and the phosphate deposits Klemms and St Kitts, Angaston, South Australia. (self published).
        • Kapunda
Frost, R.L., S.J. Mills, and K.L. Erickson, (2004), Thermal decomposition of peisleyite: a thermogravimetry and hot stage Raman spectroscopic study. Thermochimica Acta, 419(1-2): p. 109-114.; Pilkington, E. S., Segnit, E. R., & Watts, J. A. (1982). Peisleyite, a new sodium aluminium sulphate phosphate. Mineralogical Magazine, 46(341), 449-452.
        • Robertstown
Francis, G.L., Peisley, V., 2012. Minerals from Fairview and St John's phosphate deposits, South Australia. (self published).
      • South Mt Lofty Ranges (Adelaide Hills)
        • Noarlunga
American Mineralogist (1977): 62: 256-262.
  • Western Australia
    • Dandaragan Shire
      • Dandaragan
Sue Koepke collection
Simpson and Le Mesurier (1933) Journal of the Royal Society of Western Australia: 19: 13; Palache, C., Berman, H., & Frondel, C. (1951), The System of Mineralogy of James Dwight Dana and Edward Salisbury Dana, Yale University 1837-1892, Volume II: 970; American Mineralogist (1977): 62: 256-262.
  • Hainaut Province (Henegouwen; Hennegau)
    • Mons
      • Blaton
Peacor, D.R., Dunn, P.J.,Simmons,W.B. and Ramik, R.A. (1987): Ferristrunzite, a new member of the strunzite group, from Blaton, Belgium. Neues Jahrbuch für Mineralogie, Monatshefte 1987, 453-457
  • Liège Province
    • Visé
1./ A.M. Fransolet, J Jedwab and R. Van Tassel, 1974, Inventaire minéralogique de Richelles, Belgique, Annales de la Société Géologique de Belgique, Tome 27, pp. 23-26.; R. Van Tassel, A.-M. Fransolet and K. Abraham (1979) Drugmanite, Pb2(Fe3+,Al)(PO4)2(OH) · H2O, a New Mineral from Richelle, Belgium. Mineralogical Magazine 1979 43:463-467
  • Antofagasta Region
    • El Loa Province
      • Calama
        • Chuquicamata District
Minyulite - xray identification by D.Pohl AMNH Dec/88.
  • Pays de la Loire
    • Loire-Atlantique
      • Pannecé
Lheur C. (1993), Les minéralisations de l'ancienne carrière de La Floquerie près de Pannecé (Loire-Atlantique), Le Cahier des Micromonteurs, n°4, pp: 14-21
  • Tuscany
    • Grosseto Province
      • Scansano
        • Pereta
Scortecci P.B., Tazzini M., 1984. Minerals of the Pereta mine, Tuscany, Italy. Mineralogical Record, 15: 19-26
    • Pisa Province
      • Pomarance
Nannoni R., Capperi M., 1985. I minerali della "Sorgente Solfurea" di Micciano (PI). Quad. Mus. Storia Nat. Livorno, 6: 11-25.
  • Southern Kazakhstan Province (Ongtüstik Qazaqstan Oblysy; Yuzhno-Kazakhstanskaya Oblast')
Ankinovich, E.A, Bekenova, G.K., Shabanova, T.A., Zazubina, I.S., and Sandomirskaya, S.M. (1997): Canadian Mineralogist 35(6), 1415-1419.
  • Zhambyl Province (Jambyl Oblysy; Dzhambulskaya Oblast')
    • Talas Alatau Range (Talas Ala-Too Range)
Ankinovich, E.A, Bekenova, G.K., Shabanova, T.A., Zazubina, I.S., and Sandomirskaya, S.M. (1997): Canadian Mineralogist 35(6), 1415-1419.; Ankinovich, E.A, Bekenova, G.K., Shabanova, T.A., Zazubina, I.S., and Sandomirskaya, S.M. (1997): Mitryaevaite, Al10((PO4)8.7(SO3OH)1.3)10AlF3.3OH2O, a new mineral species from a Cambrian carbonaceous chert formation, Karatau Range and Zhabagly Mountains, Southern Kazakhstan. Canadian Mineralogist 35(6), 1415-1419.
  • Osh Oblast
    • Alai Range (Alay Range)
      • Fergana Valley
        • Fergana
Karpenko, V.Yu. et al. Zapiski RMO 138(1)83(2009)
South Africa
Cairncross, B. and Dixon, R., (1995), Minerals of South Africa.
  • Navarre
    • Esteríbar
      • Eugui
Calvo, M. and Viñals, J. (2003). El yacimiento de magnesita de Eugui (Navarra). Revista de Minerales, 2 (4) 6-21
  • Idaho
    • Caribou Co.
      • Soda Springs
Kampf, A. R., Nash, B. P., & Loomis, T. A. (2013). Phosphovanadylite-Ca, Ca [V4 4+ P2O8 (OH) 8]· 12H2O, the Ca analogue of phosphovanadylite-Ba. American Mineralogist, 98(2-3), 439-443.
  • Nevada
    • Eureka Co.
      • Gibellini District
NBMG Spec. Pub. 31 Minerals of Nevada; [Anthony, J. W. et al. (1997): Handbook of Mineralogy, Vol. 4, 362
        • Fish Creek Range
MinRec 32:239
NBMG Spec. Pub. 31 Minerals of Nevada
    • Pershing Co.
      • Humboldt Range
        • Willard District
[MinRec 39:297]
  • South Dakota
    • Lawrence Co.
      • Bald Mountain District
Loomis, T. (2011), "News from the Black Hills, South Dakota", Mineral News, in press
      • Lead District
[Mineralogical Record 30:203]
  • Utah
    • Box Elder Co.
      • Pilot Range
        • Lucin District
          • Lucin
            • Utahlite Hill
J. Marty (1995) Minerals of the Utahlite Claim (Edison and Bird Mine), Lucin, Box Elder County, Utah. Microprobe 8-2:4-10
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