Uranospinite
A valid IMA mineral species - grandfathered
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About Uranospinite
Formula:
Ca(UO2)2(AsO4)2 · 10H2O
Colour:
Yellow, lemon-yellow to greenish yellow
Lustre:
Waxy, Pearly, Earthy
Hardness:
2 - 3
Specific Gravity:
3.45
Crystal System:
Tetragonal
Member of:
Name:
Named in 1873 by Albin Weisbach for the URANium content plus the Greek σπίυος "spinos", for "siskin," referring to the green color.
Often as fine-grained waxy to powdery light yellow coatings. Autunite Group.
May dehydrate to metauranospinite. Possible hydronium analogue is UM1997-19-AsO:HU.
A secondary mineral occurring in the oxidized zone of arsenic-bearing and uranium-bearing hydrothermal deposits.
May dehydrate to metauranospinite. Possible hydronium analogue is UM1997-19-AsO:HU.
A secondary mineral occurring in the oxidized zone of arsenic-bearing and uranium-bearing hydrothermal deposits.
Unique Identifiers
Mindat ID:
4113
Long-form identifier:
mindat:1:1:4113:9
GUID
(UUID V4):
(UUID V4):
d6a0a69f-d3b1-4fa5-989b-d01f0bdae45a
IMA Classification of Uranospinite
Approved, 'Grandfathered' (first described prior to 1959)
Classification of Uranospinite
8.EB.05
8 : PHOSPHATES, ARSENATES, VANADATES
E : Uranyl phosphates and arsenates
B : UO2:RO4 = 1:1
8 : PHOSPHATES, ARSENATES, VANADATES
E : Uranyl phosphates and arsenates
B : UO2:RO4 = 1:1
40.2a.2.1
40 : HYDRATED NORMAL PHOSPHATES,ARSENATES AND VANADATES
2a : AB2(XO4)2·xH2O, containing (UO2)2+
40 : HYDRATED NORMAL PHOSPHATES,ARSENATES AND VANADATES
2a : AB2(XO4)2·xH2O, containing (UO2)2+
20.7.10
20 : Arsenates (also arsenates with phosphate, but without other anions)
7 : Arsenates of U
20 : Arsenates (also arsenates with phosphate, but without other anions)
7 : Arsenates of U
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 |
|---|---|---|
| Usp | 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 Uranospinite
Waxy, Pearly, Earthy
Transparency:
Translucent
Comment:
Luster pearly on {001}.
Colour:
Yellow, lemon-yellow to greenish yellow
Streak:
Very pale yellow
Hardness:
2 - 3 on Mohs scale
Tenacity:
Flexible
Cleavage:
Perfect
On {001}, perfect; on {100}, distinct.
On {001}, perfect; on {100}, distinct.
Fracture:
Micaceous
Density:
3.45 g/cm3 (Measured) 3.30 g/cm3 (Calculated)
Optical Data of Uranospinite
Type:
Uniaxial (-)
RI values:
nα = 1.550 nβ = 1.567 - 1.582 nγ = 1.572 - 1.587 nω = 1.572 - 1.587 nε = 1.550 - 1.560
2V:
Calculated: 50°
Birefringence:
0.024
Max Birefringence:
δ = 0.022 - 0.027
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:
r > v moderate
Optical Extinction:
Parallel
Pleochroism:
Visible
Comments:
O = Y = Z = Pale yellow E = X = Nearly colourless
Comments:
Commonly anomalously biaxial -, may be zoned.
Chemistry of Uranospinite
Mindat Formula:
Ca(UO2)2(AsO4)2 · 10H2O
Crystallography of Uranospinite
Crystal System:
Tetragonal
Class (H-M):
4/mmm (4/m 2/m 2/m) - Ditetragonal Dipyramidal
Space Group:
P4/nmm
Cell Parameters:
a = 7.16 Å, c = 20.4 Å
Ratio:
a:c = 1 : 2.849
Unit Cell V:
1,045.82 ų (Calculated from Unit Cell)
Z:
2
Morphology:
Crystals rare, tabular, flattened on {001}. Forms aggregates and crusts.
Comment:
Point Group/Class & Space Groups based on synthetic material and are probable.
Epitaxial Relationships of Uranospinite
Epitaxial Minerals:
| Zeunerite | Cu(UO2)2(AsO4)2 · 12H2O |
Epitaxy Comments:
Uranospinite may contain a core of zeunerite with the same crystallographic orientation.
X-Ray Powder Diffraction
Powder Diffraction Data:
| d-spacing | Intensity |
|---|---|
| 10.16 Å | (100) |
| 5.13 Å | (70) |
| 4.90 Å | (60) |
| 3.56 Å | (90) |
| 3.39 Å | (80) |
| 2.52 Å | (50b) |
| 1.90 Å | (60) |
Geological Environment
Paragenetic Mode(s):
| Paragenetic Mode | Earliest Age (Ga) |
|---|---|
| Stage 7: Great Oxidation Event | <2.4 |
| 47a : [Near-surface hydration of prior minerals] | |
| 47d : [Arsenates, antimonates, selenates, bismuthinates] | |
| 47f : [Uranyl (U⁶⁺) minerals] |
Geological Setting:
Oxidized zones of U- and As-bearing hydrothermal deposits.
Type Occurrence of Uranospinite
Place of Conservation of Type Material:
State Museum for Mineralogy and Geology, Dresden. Mining Academy, freiberg, Saxony, Germany: #21722.
Associated Minerals at Type Locality:
Synonyms of Uranospinite
Other Language Names for Uranospinite
Relationship of Uranospinite to other Species
Member of:
Other Members of this group:
| Autunite | Ca(UO2)2(PO4)2 · 10-12H2O | Orth. mmm (2/m 2/m 2/m) : Pnma |
| Bassetite | Fe2+(UO2)2(PO4)2 · 10H2O | Mon. 2/m |
| Heinrichite | Ba(UO2)2(AsO4)2 · 10H2O | Mon. 2/m : P2/b |
| Hydronováčekite | Mg(UO2)2(AsO4)2 · 12H2O | Tric. 1 : P1 |
| Kahlerite | Fe(UO2)2(AsO4)2 · 12H2O | Tet. 4/m : P42/n |
| Nováčekite | Mg(UO2)2(AsO4)2 · 10H2O | Mon. 2/m |
| Rauchite | Ni(UO2)2(AsO4)2 · 10H2O | Tric. 1 : P1 |
| Sabugalite | HAl(UO2)4(PO4)4 · 16H2O | Mon. 2/m : B2/m |
| Saléeite | Mg(UO2)2(PO4)2 · 10H2O | Mon. 2/m |
| Torbernite | Cu(UO2)2(PO4)2 · 12H2O | Tet. 4/mmm (4/m 2/m 2/m) : I4/mmm |
| Uranocircite | Ba(UO2)2(PO4)2 · 10H2O | Tet. |
| Zeunerite | Cu(UO2)2(AsO4)2 · 12H2O | Tet. 4/mmm (4/m 2/m 2/m) : I4/mmm |
Common Associates
Associated Minerals Based on Photo Data:
| 15 photos of Uranospinite associated with Zeunerite | Cu(UO2)2(AsO4)2 · 12H2O |
| 4 photos of Uranospinite associated with Fluorite | CaF2 |
| 4 photos of Uranospinite associated with Metauranospinite | Ca(UO2)2(AsO4)2 · 8H2O |
| 3 photos of Uranospinite associated with Chamosite | (Fe2+)5Al(Si,Al)4O10(OH,O)8 |
| 3 photos of Uranospinite associated with Uranophane | Ca(UO2)2(SiO3OH)2 · 5H2O |
| 2 photos of Uranospinite associated with Tourmaline | AD3G6 (T6O18)(BO3)3X3Z |
| 2 photos of Uranospinite associated with Autunite | Ca(UO2)2(PO4)2 · 10-12H2O |
| 2 photos of Uranospinite associated with Gypsum | CaSO4 · 2H2O |
| 2 photos of Uranospinite associated with Gummite | |
| 2 photos of Uranospinite associated with Albite | Na(AlSi3O8) |
Related Minerals - Strunz-mindat Grouping
| 8.EB. | Meta-autunite Group | A1-2(UO2)2(TO4)2 · 5-10H2O |
| 8.EB.05 | Autunite | Ca(UO2)2(PO4)2 · 10-12H2O |
| 8.EB.05 | Heinrichite | Ba(UO2)2(AsO4)2 · 10H2O |
| 8.EB.05 | Kahlerite | Fe(UO2)2(AsO4)2 · 12H2O |
| 8.EB.05 | Hydronováčekite | Mg(UO2)2(AsO4)2 · 12H2O |
| 8.EB.05 | Saléeite | Mg(UO2)2(PO4)2 · 10H2O |
| 8.EB.05 | Torbernite | Cu(UO2)2(PO4)2 · 12H2O |
| 8.EB.05 | Uranocircite | Ba(UO2)2(PO4)2 · 10H2O |
| 8.EB.05 | Xiangjiangite | (Fe3+,Al)(UO2)4(PO4)2(SO4)2(OH) · 22H2O |
| 8.EB.05 | Zeunerite | Cu(UO2)2(AsO4)2 · 12H2O |
| 8.EB.05 | Metarauchite | Ni(UO2)2(AsO4)2 · 8H2O |
| 8.EB.05 | Nováčekite | Mg(UO2)2(AsO4)2 · 10H2O |
| 8.EB.05 | Rauchite | Ni(UO2)2(AsO4)2 · 10H2O |
| 8.EB.10 | Bassetite | Fe2+(UO2)2(PO4)2 · 10H2O |
| 8.EB.10 | Lehnerite | Mn2+(UO2)2(PO4)2 · 8H2O |
| 8.EB.10 | Meta-autunite | Ca(UO2)2(PO4)2 · 6H2O |
| 8.EB.10 | Metasaléeite | Mg(UO2)2(PO4)2 · 8H2O |
| 8.EB.10 | Metauranocircite | Ba(UO2)2(PO4)2 · 7H2O |
| 8.EB.10 | Metauranospinite | Ca(UO2)2(AsO4)2 · 8H2O |
| 8.EB.10 | Metaheinrichite | Ba(UO2)2(AsO4)2 · 8H2O |
| 8.EB.10 | Metakahlerite | Fe2+(UO2)2(AsO4)2 · 8H2O |
| 8.EB.10 | Metakirchheimerite | Co(UO2)2(AsO4)2 · 8H2O |
| 8.EB.10 | Metanováčekite | Mg(UO2)2(AsO4)2 · 8H2O |
| 8.EB.10 | Metatorbernite | Cu(UO2)2(PO4)2 · 8H2O |
| 8.EB.10 | Metazeunerite | Cu(UO2)2(AsO4)2 · 8H2O |
| 8.EB.10 | Przhevalskite | Pb2(UO2)3(PO4)2(OH)4 · 3H2O |
| 8.EB.10 | Pseudo-autunite | (H3O)4Ca2(UO2)2(PO4)4 · 5H2O |
| 8.EB.10 | Metanatroautunite | Na(UO2)(PO4)(H2O)3 |
| 8.EB.15 | Abernathyite | K(UO2)(AsO4) · 3H2O |
| 8.EB.15 | Chernikovite | (H3O)2(UO2)2(PO4)2 · 6H2O |
| 8.EB.15 | Meta-ankoleite | K2(UO2)2(PO4)2 · 6H2O |
| 8.EB.15 | Natrouranospinite | Na2(UO2)2(AsO4)2 · 5H2O |
| 8.EB.15 | Trögerite | (H3O)(UO2)(AsO4) · 3H2O |
| 8.EB.15 | Uramphite | (NH4)2(UO2)2(PO4)2 · 6H2O |
| 8.EB.15 | Uramarsite | (NH4)(UO2)(AsO4) · 3H2O |
| 8.EB.20 | Threadgoldite | Al(UO2)2(PO4)2(OH) · 8H2O |
| 8.EB.20 | Chistyakovaite | Al(UO2)2(AsO4)2(F,OH) · 6.5H2O |
| 8.EB.25 | Arsenuranospathite | Al(UO2)2(AsO4)2F · 20H2O |
| 8.EB.25 | Uranospathite | (Al,◻)(UO2)2(PO4)2F · 20(H2O,F) |
| 8.EB.30 | Vochtenite | (Fe2+,Mg)Fe3+(UO2)4(PO4)4(OH) · 12-13H2O |
| 8.EB.35 | Coconinoite | Fe3+2Al2(UO2)2(PO4)4(SO4)(OH)2 · 20H2O |
| 8.EB.40 | Ranunculite | HAl(UO2)(PO4)(OH)3 · 4H2O |
| 8.EB.45 | Triangulite | Al3(UO2)4(PO4)4(OH)5 · 5H2O |
| 8.EB.50 | Furongite | Al13(UO2)7(PO4)13(OH)14 · 58H2O |
| 8.EB.55 | Sabugalite | HAl(UO2)4(PO4)4 · 16H2O |
| 8.EB.60 | Horákite | (Bi7O7OH)[(UO2)4(PO4)2(AsO4)2(OH)2] · 3.5H2O |
Fluorescence of Uranospinite
Bright lemon-yellow (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 Uranospinite
mindat.org URL:
https://www.mindat.org/min-4113.html
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External Links:
Mineral Dealers:
References for Uranospinite
Reference List:
Goldschmidt (1899) Zeitschrift für Kristallographie, Mineralogie und Petrographie, Leipzig: 31: 468.
Larsen, Esper S. (1921) The microscopic determination of the nonopaque minerals. Bulletin Vol. 679. US Geological Survey doi:10.3133/b679 pp.150-151
Goldschmidt, V. (1923) Atlas der Krystallformen. 9 volumes, atlas, and text. Heidelberg. vol. 9: 41.
Mrose, Mary E. (1953) Studies of uranium minerals (XIII): Synthetic uranospinites. American Mineralogist, 38 (11-12) 1159-1168
Localities for Uranospinite
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.
Argentina | |
| Las Especies Minerales de La Republica ... |
| Encyclopedia of Minerals |
Australia | |
| South Australian Museum collections / ... +3 other references |
| SA Geodata Database - Mineral Deposit ... |
Austria | |
| Paar et al. (1978) |
| Strasser (1989) | |
China | |
| Shaohua Shi et al. (2011) |
Czech Republic | |
| Pauliš P. et al. (Kutna Hora, issue 1) +1 other reference |
| - (Pavel Škácha coll.) | |
| Lapis 2002 (7/8) |
| Pauliš P. et al. (Kutna Hora, issue 1) |
| Sejkora (1994) |
France | |
| Queneau (n.d.) |
| Frédéric Bonnet Collection |
| Dal Bo et al. (2018) |
| - (1998) |
Germany | |
| |
| |
| Walenta (1992) | |
| |
| Walenta (1992) | |
| Walenta (1992) |
| Walenta (1992) |
| Möhn et al. (11/2020) |
| Weiß (1990) |
| Walenta (1992) |
| Walenta (1992) | |
| see locality page |
| N. Jb. Miner. Abh. 115 (1971) |
| Aufschluss 69/ (7+8) +1 other reference |
| Weiß (1990) |
| Möhn et al. (07/2020) |
| A. Weisbach (1873) +1 other reference |
Greece | |
| Branko Rieck collection (EDS and SXRD analyses) +3 other references |
Iran | |
| Bariand et al. (1993) |
Italy | |
| Piccoli (2002) +1 other reference |
| Marello et al. (2013) | |
| Piccoli et al. (2007) |
Kazakhstan | |
| Sidorenko et al. (2007) |
Morocco | |
| Favreau et al. (2007) |
| Favreau et al. (2006) | |
| Favreau et al. (2006) | |
Poland | |
| Mochnacka et al. (2000) +1 other reference |
| Siuda R. (The Karkonosze Mts, Poland) +1 other reference |
| Łukasz Kruszewski (pers. comm., to be updated) +4 other references | |
| Kucha (2021) +1 other reference |
| Kucha (2021) +1 other reference |
Russia | |
| Pavel.M. Kartashov (n.d.) |
South Africa | |
| Cairncross et al. (1995) |
Switzerland | |
| Stalder et al. (1998) |
Tajikistan | |
| Chernikov et al. (1997) |
UK | |
| Golley et al. (1995) |
| Day (1999) |
USA | |
| Scarborough (1981) |
| Anthony et al. (1995) +1 other reference |
| Page et al. (1956) +2 other references |
| Eckel et al. (1997) |
| Carlson et al. (2007) |
| NBMG Bull 70 Geology and Mineral ... |
| Castor et al. (2004) +1 other reference | |
| Morrill. P. +1 other reference |
| Dunn (1995) +1 other reference |
| Nevada Bureau of Mines and Geology NBMG ... |
| DANA R. KELLEY AND PAUL F. KERR (1958) |
| Bullock (1981) |
| Palache et al. (1951) +1 other reference |
| Rocks & Minerals 76:386 |
Uzbekistan | |
| Pekov (1998) +1 other reference |
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