Minyulite
A valid IMA mineral species - grandfathered
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About Minyulite
Formula:
KAl2(PO4)2F · 4H2O
formerly given as OH-dominant species; redefined due to acceptance of the IMA 21-E proposal
Colour:
Colourless, white, greenish yellow; colourless in transmitted light.
Lustre:
Vitreous, Silky
Hardness:
3½
Specific Gravity:
2.47 (Calculated)
Crystal System:
Orthorhombic
Name:
After the type locality at Minyulo Well, Dandaragan, Western Australia, Australia.
This page provides mineralogical data about Minyulite.
Unique Identifiers
Mindat ID:
2724
Long-form identifier:
mindat:1:1:2724:9
GUID
(UUID V4):
(UUID V4):
715763bf-686b-449d-9ade-a84a7ec4d079
IMA Classification of Minyulite
Approved, 'Grandfathered' (first described prior to 1959)
IMA status notes:
Redefined by the IMA
First published:
1933
Approval history:
IMA 21-E (redefinition): Miyawaki et al. (2021).
Classification of Minyulite
8.DH.05
8 : PHOSPHATES, ARSENATES, VANADATES
D : Phosphates, etc. with additional anions, with H2O
H : With large and medium-sized cations, (OH, etc.):RO4 < 1:1
8 : PHOSPHATES, ARSENATES, VANADATES
D : Phosphates, etc. with additional anions, with H2O
H : With large and medium-sized cations, (OH, etc.):RO4 < 1:1
42.11.5.1
42 : HYDRATED PHOSPHATES, ETC.CONTAINING HYDROXYL OR HALOGEN
11 : (AB)3(XO4)2Zq·xH2O
42 : HYDRATED PHOSPHATES, ETC.CONTAINING HYDROXYL OR HALOGEN
11 : (AB)3(XO4)2Zq·xH2O
22.1.15
22 : Phosphates, Arsenates or Vanadates with other Anions
1 : Phosphates, arsenates or vanadates with fluoride
22 : Phosphates, Arsenates or Vanadates with other Anions
1 : Phosphates, arsenates or vanadates with fluoride
Mineral Symbols
As of 2021 there are now IMA–CNMNC approved mineral symbols (abbreviations) for each mineral species, useful for tables and diagrams.
Symbol | Source | Reference |
---|---|---|
Myu | IMA–CNMNC | Warr, L.N. (2021). IMA–CNMNC approved mineral symbols. Mineralogical Magazine, 85(3), 291-320. doi:10.1180/mgm.2021.43 |
Physical Properties of Minyulite
Vitreous, Silky
Transparency:
Transparent
Comment:
Lustre silky in aggregates.
Colour:
Colourless, white, greenish yellow; colourless in transmitted light.
Streak:
White
Hardness:
3½ on Mohs scale
Tenacity:
Brittle
Density:
2.47 g/cm3 (Calculated)
Optical Data of Minyulite
Type:
Biaxial (+)
RI values:
nα = 1.531 nβ = 1.534 nγ = 1.538
2V:
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.
and does not take into account mineral colouration.
Surface Relief:
Low
Dispersion:
relatively weak
Chemistry of Minyulite
Mindat Formula:
KAl2(PO4)2F · 4H2O
formerly given as OH-dominant species; redefined due to acceptance of the IMA 21-E proposal
formerly given as OH-dominant species; redefined due to acceptance of the IMA 21-E proposal
Crystallography of Minyulite
Crystal System:
Orthorhombic
Class (H-M):
mm2 - Pyramidal
Space Group:
Pba2
Cell Parameters:
a = 9.34 Å, b = 9.74 Å, c = 5.52 Å
Ratio:
a:b:c = 0.959 : 1 : 0.567
Unit Cell V:
502.16 ų (Calculated from Unit Cell)
Morphology:
Radiating fibrous to prismatic crystals, elongated [001] with {110} and {111} terminations. Commonly in subparallel growth or as spherules.
Crystal Structure
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Data courtesy of the American Mineralogist Crystal Structure Database. Click on an AMCSD ID to view structure
ID | Species | Reference | Link | Year | Locality | Pressure (GPa) | Temp (K) |
---|---|---|---|---|---|---|---|
0000563 | Minyulite | Kampf A R (1977) Minyulite: its atomic arrangement American Mineralogist 62 256-262 | 1977 | 0 | 293 |
CIF Raw Data - click here to close
X-Ray Powder Diffraction
Powder Diffraction Data:
d-spacing | Intensity |
---|---|
5.519 Å | (100) |
3.349 Å | (55) |
3.402 Å | (45) |
6.75 Å | (35) |
3.068 Å | (35) |
2.681 Å | (25) |
2.967 Å | (23) |
Geological Environment
Paragenetic Mode(s):
Paragenetic Mode | Earliest Age (Ga) |
---|---|
High-𝑇 alteration and/or metamorphism | |
31 : Thermally altered carbonate, phosphate, and iron formations | |
Stage 7: Great Oxidation Event | <2.4 |
47a : [Near-surface hydration of prior minerals] | |
47c : [Carbonates, phosphates, borates, nitrates] | |
47g : [Halogen-bearing surface weathering minerals] |
Type Occurrence of Minyulite
General Appearance of Type Material:
Fibrous; closely resembling wavellite. Dense radiating groups of fine fibers.
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.
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:
Reference:
Simpson, E.S., Le Mesurier, C.R. (1933) Minyulite, a new phosphate mineral from Dandaragan, W.A.. Journal of the Royal Society of Western Australia: 19: 13-16.
Other Language Names for Minyulite
Common Associates
Associated Minerals Based on Photo Data:
32 photos of Minyulite associated with Aldermanite | [Mg(H2O)6][Na(H2O)2Al3(PO4)2(OH,F)6] · H2O |
22 photos of Minyulite associated with Sincosite | Ca(VO)2(PO4)2 · 5H2O |
10 photos of Minyulite associated with Quartz | SiO2 |
8 photos of Minyulite associated with Fluellite | Al2(PO4)F2(OH) · 7H2O |
6 photos of Minyulite associated with Wavellite | Al3(PO4)2(OH,F)3 · 5H2O |
4 photos of Minyulite associated with Limonite | |
3 photos of Minyulite associated with Variscite | AlPO4 · 2H2O |
3 photos of Minyulite associated with Gypsum | CaSO4 · 2H2O |
2 photos of Minyulite associated with Crandallite | CaAl3(PO4)(PO3OH)(OH)6 |
2 photos of Minyulite associated with Stibiconite | Sb3+Sb5+2O6(OH) |
Related Minerals - Strunz-mindat Grouping
8.DH. | Ferroberaunite | Fe2+Fe3+5(PO4)4(OH)5 · 6H2O |
8.DH. | Rowleyite | [Na(NH4,K)9Cl4][V5+,4+2(P,As)O8]6 · n[H2O,Na,NH4,K,Cl] |
8.DH. | Ammoniotinsleyite | (NH4)Al2(PO4)2(OH) · 2H2O |
8.DH. | Thebaite-(NH4) | (NH4)3Al(C2O4)(PO3OH)2(H2O) |
8.DH. | Dendoraite-(NH4) | (NH4)2NaAl(C2O4)(PO3OH)2(H2O)2 |
8.DH. | Whiteite-(MnMnMn) | Mn2+Mn2+Mn2+2Al2(PO4)4(OH)2 · 8H2O |
8.DH. | Whiteite-(CaMnFe) | CaMnFe2Al2(PO4)4(OH)2 · 8H2O |
8.DH. | Hochleitnerite | Mn2Ti3(PO4)4O2(H2O)2 · 14H2O |
8.DH. | Regerite | KFe6(PO4)4(OH)7(H2O)6 · 4H2O |
8.DH.10 | Leucophosphite | KFe3+2(PO4)2(OH) · 2H2O |
8.DH.10 | Spheniscidite | (NH4,K)(Fe3+,Al)2(PO4)2(OH) · 2H2O |
8.DH.10 | Tinsleyite | KAl2(PO4)2(OH) · 2H2O |
8.DH.15 | Jahnsite-(CaMnFe) | {Ca}{Mn2+}{Fe2+2}{Fe3+2}(PO4)4(OH)2 · 8H2O |
8.DH.15 | Jahnsite-(CaMnMg) | {Ca}{Mn2+}{(Mg,Fe2+)2}{Fe3+2}(PO4)4(OH)2 · 8H2O |
8.DH.15 | Jahnsite-(CaMnMn) | {Ca}{Mn2+}{Mn2+2}{Fe3+2}(PO4)4(OH)2 · 8H2O |
8.DH.15 | Keckite | CaMn2+(Fe3+Mn2+)Fe3+2(PO4)4(OH)3 · 7H2O |
8.DH.15 | Rittmannite | {(Mn2+,Ca)}{Mn2+}{(Fe2+,Mn2+,Mg)2}{(Al,Fe3+)2}(PO4)4(OH)2 · 8H2O |
8.DH.15 | Whiteite-(CaFeMg) | {Ca}{(Fe2+,Mn2+)}{Mg2}{Al2}(PO4)4(OH)2 · 8H2O |
8.DH.15 | Whiteite-(CaMnMg) | {Ca}{Mn2+}{Mg2}{Al2}(PO4)4(OH)2 · 8H2O |
8.DH.15 | Whiteite-(MnFeMg) | {(Mn2+,Ca)}{(Fe2+,Mn2+)}{Mg2}{Al2}(PO4)4(OH)2 · 8H2O |
8.DH.15 | Jahnsite-(MnMnMn) | {Mn2+}{Mn2+}{Mn2+2}{Fe3+2}(PO4)4(OH)2 · 8H2O |
8.DH.15 | Kaluginite | (Mn2+,Ca)MgFe3+(PO4)2(OH) · 4H2O |
8.DH.15 | Jahnsite-(CaFeFe) | {Ca}{Fe2+}{Fe2+2}{Fe3+2}(PO4)4(OH)2 · 8H2O |
8.DH.15 | Jahnsite-(NaFeMg) | NaFe3+Mg2Fe3+2(PO4)4(OH)2 · 8H2O |
8.DH.15 | Jahnsite-(NaMnMg) | {(Na,Ca)}{(Mn2+,Fe3+)}{(Mg,Fe3+)2}{Fe3+2}(PO4)4(OH)2 · 8H2O |
8.DH.15 | Jahnsite-(CaMgMg) | {Ca}{Mg}{Mg2}{Fe3+2}(PO4)4(OH)2 · 8H2O |
8.DH.15 | Whiteite-(CaMnMn) | {Ca}{Mn2+}{Mn2}{Al2}(PO4)4(OH)2 · 8H2O |
8.DH.15 | Whiteite-(MnMnMg) | MnMnMg2Al2(PO4)4(OH)2 · 8H2O |
8.DH.15 | Jahnsite-(MnMnMg) | Mn2+Mn2+Mg2Fe3+2(PO4)4(OH)2 · 8H2O |
8.DH.15 | Jahnsite-(CaFeMg) | CaFe2+Mg2Fe3+2(PO4)4(OH)2 · 8H2O |
8.DH.15 | Jahnsite-(MnMnFe) | Mn2+Mn2+Fe2+2Fe3+2(PO4)4(OH)2 · 8H2O |
8.DH.15 | Whiteite-(CaMgMg) | CaMg3Al2(PO4)4(OH)2 · 8H2O |
8.DH.15 | Jahnsite-(MnMnZn) | Mn2+Mn2+Zn2Fe3+2(PO4)4(OH)2 · 8H2O |
8.DH.15 | Jahnsite-(NaMnMn) | NaMn2+(Mn2+Fe3+)Σ2Fe3+2(PO4)4(OH)2 · 8H2O |
8.DH.15 | Jahnsite-(CaMnZn) | CaMn2+Zn2Fe3+2(PO4)4(OH)2 · 8H2O |
8.DH.20 | Lun'okite | (Mn,Ca)(Mg,Fe,Mn)Al(PO4)2OH · 4H2O |
8.DH.20 | Manganosegelerite | (Mn2+,Ca)(Mn2+,Fe2+,Mg)Fe3+(PO4)2(OH) · 4H2O |
8.DH.20 | Overite | CaMgAl(PO4)2(OH) · 4H2O |
8.DH.20 | Segelerite | Ca2 Mg2 Fe3+2(PO4)4(OH)2 · 8H2O |
8.DH.20 | Wilhelmvierlingite | CaMnFe3+(PO4)2(OH) · 2H2O |
8.DH.20 | Juonniite | CaMgSc(PO4)2(OH) · 4H2O |
8.DH.25 | Calcioferrite | Ca2Fe3+2(PO4)3(OH) · 7H2O |
8.DH.25 | Kingsmountite | Ca3MnFeAl4(PO4)6(OH)4 · 12H2O |
8.DH.25 | Montgomeryite | Ca4MgAl4(PO4)6(OH)4 · 12H2O |
8.DH.25 | Zodacite | Ca4Mn2+Fe3+4(PO4)6(OH)4 · 12H2O |
8.DH.25 | Fanfaniite | Ca4MnAl4(PO4)6(OH)4 · 12H2O |
8.DH.30 | Arseniosiderite | Ca2Fe3+3(AsO4)3O2 · 3H2O |
8.DH.30 | Kolfanite | Ca2Fe3+3O2(AsO4)3 · 2H2O |
8.DH.30 | Mitridatite | Ca2Fe3+3(PO4)3O2 · 3H2O |
8.DH.30 | Pararobertsite | Ca2Mn3+3(PO4)3O2 · 3H2O |
8.DH.30 | Robertsite | Ca2Mn3+3(PO4)3O2 · 3H2O |
8.DH.30 | Sailaufite | (Ca,Na,◻)2Mn3+3(AsO4)2(CO3)O2 · 3H2O |
8.DH.35 | Mantienneite | KMg2Al2Ti(PO4)4(OH)3 · 15H2O |
8.DH.35 | Paulkerrite | K(Mg,Mn2+)2(Fe3+,Al,Ti,Mg)2Ti(PO4)4(OH)3 · 15H2O |
8.DH.35 | Benyacarite | (H2O)2Mn2Ti2Fe3+(PO4)4(OF)(H2O)10 · 4H2O |
8.DH.35 | Hydroxylbenyacarite | (H2O)2Mn2(Ti2Fe)(PO4)4[O(OH)](H2O)10 · 4H2O |
8.DH.35 | Macraeite | K(H2O)Mn2(Fe2Ti)(PO4)4[O(OH)](H2O)10 · 4H2O |
8.DH.40 | Xanthoxenite | Ca4Fe3+2(PO4)4(OH)2 · 3H2O |
8.DH.45 | Mahnertite | NaCu3(AsO4)2Cl · 5H2O |
8.DH.50 | Andyrobertsite | KCdCu5(AsO4)4(H2AsO4) · 2H2O |
8.DH.50 | Calcioandyrobertsite | KCaCu5(AsO4)4(H2AsO4) · 2H2O |
8.DH.55 | Englishite | K3Na2Ca10Al15(PO4)21(OH)7 · 26H2O |
8.DH.60 | Bouazzerite | Bi6(Mg,Co)11Fe3+14(AsO4)18(OH)4O12 · 86H2O |
8.DH.65 | Galliskiite | Ca4Al2(PO4)2F8 · 5H2O |
8.DH.70 | Joteite | Ca2CuAl(AsO4)[AsO3(OH)]2(OH)2 · 5H2O |
8.DH.75 | Kampelite | Ba6Mg3Sc8(PO4)12(OH)6 · 7H2O |
8.DH.80 | Kapundaite | NaCaFe4(PO4)4(OH)3 · 5H2O |
8.DH.85 | Vaniniite | Ca2Mn2+3Mn3+2O2(AsO4)4 · 2H2O |
Other Information
Notes:
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.
Internet Links for Minyulite
mindat.org URL:
https://www.mindat.org/min-2724.html
Please feel free to link to this page.
Please feel free to link to this page.
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External Links:
References for Minyulite
Reference List:
Spencer, L. J., Bannister, F. A., Hey, M. H., Bennett, Hilda (1943) Minyulite (hydrous K-Al fluophosphate) from South Australia. Mineralogical Magazine and Journal of the Mineralogical Society, 26 (181) 309-314 doi:10.1180/minmag.1943.026.181.01
Frost, Ray L., López, Andrés, Xi, Yunfei, Cardoso, Luiz Henrique, Scholz, Ricardo (2014) A vibrational spectroscopic study of the phosphate mineral minyulite KAl2(OH,F)(PO4)2⋅4(H2O) and in comparison with wardite. Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy, 124. 34-39 doi:10.1016/j.saa.2013.12.039
Localities for Minyulite
Locality List
- This locality has map coordinates listed.
- This locality has estimated coordinates.
ⓘ - Click for references and 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 (e.g. from pseudomorphs).
All localities listed without proper references should be considered as questionable.
All localities listed without proper references should be considered as questionable.
Antarctica | |
| Anthony et al. (2000) |
| Tatjir et al. (1984) |
Tatur et al. (1985) | |
Australia | |
| Murray (1973) |
| Segnit et al. (1981) +1 other reference |
Francis et al. (self published) +1 other reference | |
| |
Pilkington et al. (1982) +1 other reference | |
| Francis et al. (2012) |
| |
Kampf (1977) | |
| Sue Koepke collection |
| Simpson et al. (1933) +2 other references |
Belgium | |
| Van Tassel R. (1960) +7 other references |
| Fransolet et al. (1974) +3 other references |
Chile | |
| SEM-EDS and XRD by Igor V. Pekov |
| Minyulite - xray identification by ... |
France | |
| Lukas (1978) +2 other references |
Italy | |
| Menchetti et al. (1981) +1 other reference |
| Nannoni R. et al. (PI) |
Kazakhstan | |
| Ankinovich et al. (1997) |
| Ankinovich et al. (1997) |
Kyrgyzstan | |
| Karpenko et al. (2009) |
South Africa | |
| Martini (1978) |
Spain | |
| Calvo et al. (2003) |
USA | |
| Kampf et al. (2013) |
| [Anthony (1997) +1 other reference |
| Robert E.Walstrom Collection +2 other references |
Castor et al. (2004) | |
| Jensen et al. (2001) |
| Loomis (2011) |
| Loomis (1999) |
| James Zigras specimen |
J. Marty (1995) |
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Tom's Quarry, Kapunda, North Mt Lofty Ranges, Mt Lofty Ranges, South Australia, Australia