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Metavanuralite
A valid IMA mineral species
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About Metavanuralite
Formula:
Al(UO2)2(VO4)2(OH) · 8H2O
Colour:
Yellow, greenish yellow
Lustre:
Resinous, Waxy, Greasy
Crystal System:
Triclinic
Member of:
Name:
Named in 1970 by Fabien Cesbron for the mineral's dehydration relationship, "meta-" with the parent mineral, vanuralite.
Unique Identifiers
Mindat ID:
2693
Long-form identifier:
mindat:1:1:2693:8
Classification of Metavanuralite
Francevillite sheet topology
The sheet topology found in minerals of the carnotite group.
IMA Classification of Metavanuralite
Approved
IMA Formula:
Al(U6+O2)2(V5+O4)2(OH)·8H2O
Approval year:
1970
First published:
1970
Type description reference:
4.HB.20
4 : OXIDES (Hydroxides, V[5,6] vanadates, arsenites, antimonites, bismuthites, sulfites, selenites, tellurites, iodates)
H : V[5,6] Vanadates
B : Uranyl Sorovanodates
4 : OXIDES (Hydroxides, V[5,6] vanadates, arsenites, antimonites, bismuthites, sulfites, selenites, tellurites, iodates)
H : V[5,6] Vanadates
B : Uranyl Sorovanodates
Dana 7th ed.:
42.11.15.2
42.11.13.2
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
21.4.11
21 : Vanadates (and vanadates with arsenate or phosphate)
4 : Vanadates of U, Mn, Fe or Ni
21 : Vanadates (and vanadates with arsenate or phosphate)
4 : Vanadates of U, Mn, Fe or Ni
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 for Standard |
|---|---|---|
| Mvnr | 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 Metavanuralite
Resinous, Waxy, Greasy
Transparency:
Translucent
Colour:
Yellow, greenish yellow
Streak:
Pale yellow
Tenacity:
Brittle
Cleavage:
Perfect
(001)
(001)
Fracture:
Splintery, Micaceous
Optical Data of Metavanuralite
Type:
Biaxial
Chemistry of Metavanuralite
Mindat Formula:
Al(UO2)2(VO4)2(OH) · 8H2O
Element Weights:
Crystallography of Metavanuralite
Crystal System:
Triclinic
Cell Parameters:
a = 10.46(3) Å, b = 8.44(3) Å, c = 10.43(3) Å
α = 75.88(33)°, β = 102.83(33)°, γ = 90.00(33)°
α = 75.88(33)°, β = 102.83(33)°, γ = 90.00(33)°
Ratio:
a:b:c = 1.239 : 1 : 1.236
Unit Cell V:
869.24 ų (Calculated from Unit Cell)
Z:
2
Morphology:
Bladed crystals with oblique termination, usually in somewhat radial aggregates.
Comment:
Point Group: 1 or 1; Space Group: P1 or P1.
X-Ray Powder Diffraction
Powder Diffraction Data:
| d-spacing | Intensity |
|---|---|
| 9.92 Å | (100) |
| 5.10 Å | (25) |
| 4.174 Å | (75) |
| 4.086 Å | (75) |
| 3.240 Å | (50) |
| 3.153 Å | (75) |
| 3.073 Å | (50) |
Geological Environment
Paragenetic Mode(s):
| Paragenetic Mode | Earliest Age (Ga) |
|---|---|
| Stage 7: Great Oxidation Event | <2.4 |
| 47a : [Near-surface hydration of prior minerals] | |
| 47e : [Vanadates, chromates, manganates] | |
| 47f : [Uranyl (U⁶⁺) minerals] |
Type Occurrence of Metavanuralite
General Appearance of Type Material:
Yellow bladed crystals usually in radial clusters.
Place of Conservation of Type Material:
National School of Mines, Paris, France.
National Museum of Natural History, Washington, D.C., USA, 165404, R16486.
National Museum of Natural History, Washington, D.C., USA, 165404, R16486.
Geological Setting of Type Material:
Hydrothermal uranium and vanadium deposit.
Associated Minerals at Type Locality:
Synonyms of Metavanuralite
Other Language Names for Metavanuralite
Relationship of Metavanuralite to other Species
Member of:
Other Members of Carnotite Group:
| Carnotite | K2(UO2)2(VO4)2 · 3H2O | Mon. 2/m : P21/c |
| Margaritasite | (Cs,K,H3O)2(UO2)2(VO4)2 · H2O | Mon. 2/m : P21/c |
| Metatyuyamunite | Ca(UO2)2(VO4)2 · 3H2O | Orth. mmm(2/m2/m2/m) |
| Sengierite | Cu2(UO2)2(VO4)2 · 6H2O | Mon. 2/m : P21/c |
| Strelkinite | Na2(UO2)2(VO4)2 · 6H2O | Orth. |
| Tyuyamunite | Ca(UO2)2(VO4)2 · 5-8H2O | Orth. mmm(2/m2/m2/m) : Pnna |
| Vanuralite | Al(UO2)2(V2O8)(OH) · 11H2O | Mon. 2/m |
Common Associates
Associations Based on Photo Data:
| 2 photos of Metavanuralite associated with Tyuyamunite | Ca(UO2)2(VO4)2 · 5-8H2O |
Related Minerals - Strunz-mindat Grouping
| 4.HB.X | Spanoite | Tl2[(UO2)2(V2O8)] |
| 4.HB.05 | Margaritasite | (Cs,K,H3O)2(UO2)2(VO4)2 · H2O |
| 4.HB.05 | Carnotite | K2(UO2)2(VO4)2 · 3H2O |
| 4.HB.10 | Sengierite | Cu2(UO2)2(VO4)2 · 6H2O |
| 4.HB.15 | Francevillite | Ba(UO2)2(VO4)2 · 5H2O |
| 4.HB.15 | Fritzscheite | Mn2+(UO2)2(VO4,PO4)2 · 4H2O |
| 4.HB.15 | Curienite | Pb(UO2)2(VO4)2 · 5H2O |
| 4.HB.15 | Finchite | Sr(UO2)2(V2O8) · 5H2O |
| 4.HB.20 | Vanuralite | Al(UO2)2(V2O8)(OH) · 11H2O |
| 4.HB.25 | Metatyuyamunite | Ca(UO2)2(VO4)2 · 3H2O |
| 4.HB.25 | Tyuyamunite | Ca(UO2)2(VO4)2 · 5-8H2O |
| 4.HB.30 | Strelkinite | Na2(UO2)2(VO4)2 · 6H2O |
| 4.HB.35 | Uvanite | U6+2V5+6O21 · 15H2O (?) |
| 4.HB.40 | Rauvite | Ca(UO2)2(V10O28) · 16H2O |
| 4.HB.45 | Vandermeerscheite | K2[(UO2)2V2O8] · 2H2O |
Radioactivity
Fluorescence of Metavanuralite
Not fluorescent in UV
Other Information
Notes:
radioactive
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 Metavanuralite
mindat.org URL:
https://www.mindat.org/min-2693.html
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References for Metavanuralite
Localities for Metavanuralite
Showing 4 localities.
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.
Gabon (TL) | |
| Cesbron (1970) +1 other reference |
UK | |
| an abandoned uranium mine +1 other reference |
USA | |
| Färber (n.d.) |
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Firefly–Pigmay Mine, La Sal Creek Mining District, San Juan County, Utah, USA