Vashegyite
A valid IMA mineral species - grandfathered
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About Vashegyite
Formula:
Al11(PO4)9(OH)6 · 38H2O
Colour:
White, light green, light yellow, light brown; colourless in transmitted light
Lustre:
Waxy, Dull
Hardness:
2 - 3
Specific Gravity:
1.93 - 1.99
Crystal System:
Orthorhombic
Name:
Named after its discovery locality, Vashegy, Hungary, now Zelezník, near Szirk, Slovak Republic.
This page provides mineralogical data about Vashegyite.
Unique Identifiers
Mindat ID:
4159
Long-form identifier:
mindat:1:1:4159:7
GUID
(UUID V4):
(UUID V4):
9e426ed8-e7fb-40f6-a7e5-4824c674d016
IMA Classification of Vashegyite
Approved, 'Grandfathered' (first described prior to 1959)
First published:
1909
Classification of Vashegyite
8.DB.10
8 : PHOSPHATES, ARSENATES, VANADATES
D : Phosphates, etc. with additional anions, with H2O
B : With only medium-sized cations, (OH, etc.):RO4< 1:1
8 : PHOSPHATES, ARSENATES, VANADATES
D : Phosphates, etc. with additional anions, with H2O
B : With only medium-sized cations, (OH, etc.):RO4< 1:1
42.12.2.1
42 : HYDRATED PHOSPHATES, ETC.CONTAINING HYDROXYL OR HALOGEN
12 : (AB)4(XO4)3Zq·xH2O
42 : HYDRATED PHOSPHATES, ETC.CONTAINING HYDROXYL OR HALOGEN
12 : (AB)4(XO4)3Zq·xH2O
19.7.12
19 : Phosphates
7 : Phosphates of Al alone
19 : Phosphates
7 : Phosphates of Al alone
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 |
|---|---|---|
| Vhg | 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 Vashegyite
Waxy, Dull
Transparency:
Opaque
Colour:
White, light green, light yellow, light brown; colourless in transmitted light
Hardness:
2 - 3 on Mohs scale
Cleavage:
Perfect
Perfect on {001}
Perfect on {001}
Density:
1.93 - 1.99 g/cm3 (Measured) 1.935 g/cm3 (Calculated)
Optical Data of Vashegyite
Type:
Biaxial (-)
RI values:
nα = 1.470 - 1.479 nβ = 1.477 - 1.488 nγ = 1.482 - 1.490
2V:
Measured: 67° to 74°
Max Birefringence:
δ = 0.012
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:
Moderate
Dispersion:
relatively weak
Chemistry of Vashegyite
Mindat Formula:
Al11(PO4)9(OH)6 · 38H2O
Elements listed:
Crystallography of Vashegyite
Crystal System:
Orthorhombic
Class (H-M):
mmm (2/m 2/m 2/m) - Dipyramidal
Cell Parameters:
a = 10.77 Å, b = 14.97 Å, c = 20.62 Å
Ratio:
a:b:c = 0.719 : 1 : 1.377
Unit Cell V:
3,324.50 ų (Calculated from Unit Cell)
Z:
2
Morphology:
Crystals lozenge shaped, flattened on {001}. Forms hemispherical aggregates; commonly porous to compact, massive.
Comment:
Class may be mm2; space group either Pnam or Pna21.
X-Ray Powder Diffraction
Powder Diffraction Data:
| d-spacing | Intensity |
|---|---|
| 9.80 Å | (vs) |
| 9.20 Å | (vs) |
| 7.24 Å | (vs) |
| 6.80 Å | (m) |
| 2.90 Å | (vs) |
| 2.51 Å | (ms) |
| 2.127 Å | (ms) |
Geological Environment
Paragenetic Mode(s):
| Paragenetic Mode | Earliest Age (Ga) |
|---|---|
| Near-surface Processes | |
| 22 : Hydration and low-𝑇 subsurface aqueous alteration (see also #23) | |
| Stage 7: Great Oxidation Event | <2.4 |
| 47a : [Near-surface hydration of prior minerals] | |
| 47c : [Carbonates, phosphates, borates, nitrates] |
Type Occurrence of Vashegyite
Place of Conservation of Type Material:
Type specimen in Budapest destroyed in 1956 during the Soviet invasion. The Natural History Museum, London, England: 1910,101.
Geological Setting of Type Material:
In "boxwork" limonite in the oxidized zone of an iron deposit.
Associated Minerals at Type Locality:
Reference:
Zimányi, K. (1909) Vashegyit, ein neues basisches Aluminiumphosphat vom Comitat Gömör. Zeitschrift für Krystallographie und Mineralogie, 47, 53-55.
Synonyms of Vashegyite
Other Language Names for Vashegyite
German:Vashegyit
Spanish:Vashegyita
Common Associates
Associated Minerals Based on Photo Data:
| 7 photos of Vashegyite associated with Volborthite | Cu3(V2O7)(OH)2 · 2H2O |
| 4 photos of Vashegyite associated with Evansite | Al3(PO4)(OH)6 · 6H2O |
| 3 photos of Vashegyite associated with Allophane | (Al2O3)(SiO2)1.3-2 · 2.5-3H2O |
| 3 photos of Vashegyite associated with Vanoxite | V4+4V5+2O13 · 8H2O |
| 3 photos of Vashegyite associated with Metaschoderite | Al2(PO4)(VO4) · 6H2O |
| 1 photo of Vashegyite associated with Bokite | (Al,Fe)1.3(V5+,V4+,Fe3+)8O20 · 7.5H2O |
| 1 photo of Vashegyite associated with Gypsum | CaSO4 · 2H2O |
| 1 photo of Vashegyite associated with Schoderite | Al2(PO4)(VO4) · 8H2O |
Related Minerals - Strunz-mindat Grouping
| 8.DB. | Arangasite | Al2F(PO4)(SO4) · 9H2O |
| 8.DB. | Camaronesite | [Fe3+(H2O)2(PO3OH)]2(SO4) · 1-2H2O |
| 8.DB. | Höslite | Fe3+3(VO4)2(SO4)(OH)(H2O)4 · 3H2O |
| 8.DB.05 | Diadochite | Fe3+2(PO4)(SO4)(OH) · 6H2O |
| 8.DB.05 | Pitticite | (Fe, AsO4, H2O) (?) |
| 8.DB.05 | Destinezite | Fe3+2(PO4)(SO4)(OH) · 6H2O |
| 8.DB.07 | Wilhelmgümbelite | ZnFe2+Fe3+3(PO4)3(OH)4(H2O)5 · 2H2O |
| 8.DB.07 | Schmidite | [Zn2(Fe3+,Mn2+)2Fe3+(PO4)3(OH)3(H2O)6] · 2H2O |
| 8.DB.07 | Wildenauerite | Zn(Fe3+,Mn2+)2MnFe3+(PO4)3(OH)3(H2O)6 · 2H2O |
| 8.DB.15 | Schoonerite | ZnMn2+Fe2+2Fe3+(PO4)3(OH)2 · 9H2O |
| 8.DB.20 | Sinkankasite | Mn2+Al(PO3OH)2(OH) · 6H2O |
| 8.DB.25 | Mitryaevaite | Al6(PO4)((P,S)O3(OH,O))2F2(OH)2 · 14.5H2O |
| 8.DB.30 | Sanjuanite | Al2(PO4)(SO4)(OH) · 9H2O |
| 8.DB.35 | Sarmientite | Fe3+2(AsO4)(SO4)(OH) · 5H2O |
| 8.DB.40 | Bukovskýite | Fe3+2(AsO4)(SO4)(OH) · 9H2O |
| 8.DB.40 | Flurlite | Zn3Mn2+Fe3+(PO4)3(OH)2 · 9H2O |
| 8.DB.40 | Manganflurlite | ZnMn2+3Fe3+(PO4)3(OH)2(H2O)7 · 2H2O |
| 8.DB.42 | Bohuslavite | Fe3+4(PO4)3(SO4)(OH) · nH2O |
| 8.DB.45 | Zýkaite | Fe3+4(AsO4)3(SO4)(OH) · 15H2O |
| 8.DB.47 | Lapeyreite | Cu3O[AsO3(OH)]2 · 0.75H2O |
| 8.DB.50 | Giniite | Fe2+Fe3+4(PO4)3(OH)5 · 2H2O |
| 8.DB.50 | Rossiantonite | Al3(PO4)(SO4)2(OH)2(H2O)14 |
| 8.DB.52 | Arctowskite | Al9(PO4)8(OH)3 · 27H2O |
| 8.DB.55 | Sasaite | (Al,Fe3+)14(PO4)11(SO4)(OH)7 · 83H2O |
| 8.DB.60 | Mcauslanite | Fe3Al2(PO4)3(PO3OH)F · 18H2O |
| 8.DB.65 | Goldquarryite | CuCd2Al3(PO4)4F2(H2O,F)2 · 10H2O |
| 8.DB.70 | Birchite | Cd2Cu2(PO4)2(SO4) · 5H2O |
| 8.DB.75 | Braithwaiteite | NaCu5(Ti4+Sb5+)(AsO4)4(HAsO4)2O2 · 8H2O |
Other Information
Notes:
Readily soluble in acids.
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 Vashegyite
mindat.org URL:
https://www.mindat.org/min-4159.html
Please feel free to link to this page.
Please feel free to link to this page.
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References for Vashegyite
Localities for Vashegyite
symbol to view information about a locality.
The 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).
All localities listed without proper references should be considered as questionable.
Antarctica | |
| Barczuk A. & Tatur A. 2003: BIOGENIC ... |
Austria | |
| Meixner +3 other references |
| Exel (1993) |
| Exel (1993) |
| Exel (1993) |
Belgium | |
| Van Tassel (1985) +2 other references |
Brazil | |
| Cassedanne et al. (1981) |
| Piló et al. (2023) |
Czech Republic | |
| Prachař +6 other references |
| Jirásek | |
Germany | |
| F. Rüger (1) |
Hungary | |
| Koch: Minerals of Hungary |
| Szakáll et al. (1996) |
Italy | |
| Orlandi (2011) |
| Baldoni et al. (2013) +2 other references |
| Orlandi et al. (2005) |
Japan | |
| Matsubara et al. (2006) |
| Matsubara et al. (2006) |
| Yamada (2004) | |
| Shinichi Kato collection |
New Zealand | |
| Bannister et al. (1946) |
Romania | |
| Onac et al. (2007) |
Slovakia (TL) | |
| Math. es Term.tud.Ert. (1909) |
| lení Národního muzea v Praze +2 other references |
Spain | |
| Joan Abella i Creus (Joanabellacreus@gmail.com) |
USA | |
| R.M. Joeckel et al. (2011) |
| R.M. Joeckel et al. (2011) |
| NBMG Bull 64 Geology and Mineral ... |
| Anthony et al. (2016) |
| Castor et al. (2004) |
| NBMG Bull 99B Geology and Mineral ... +1 other reference |
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Kociha occurrence, Vyšný Skálnik, Rimavská Sobota District, Banská Bystrica Region, Slovakia