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Urancalcarite

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About UrancalcariteHide

Formula:
Ca(UO2)3(CO3)(OH)6 · 3H2O
Colour:
Light yellow, bright yellow
Lustre:
Vitreous
Hardness:
2 - 3
Crystal System:
Orthorhombic
Name:
The name reflects its composition: uranyl plus calcareous components.
This page provides mineralogical data about Urancalcarite.


Classification of UrancalcariteHide

Approved
Approval Year:
1983
5.EA.10

5 : CARBONATES (NITRATES)
E : Uranyl Carbonates
A : UO2:CO3 > 1:1
16b.5.2.1

16b : HYDRATED CARBONATES CONTAINING HYDROXYL OR HALOGEN
5 : AmBn(XO3)pZqxH2O & with (m+n):p = 4:1
11.11.9

11 : Carbonates
11 : Carbonates of Cr and U

Physical Properties of UrancalcariteHide

Vitreous
Transparency:
Transparent
Colour:
Light yellow, bright yellow
Streak:
Pale yellow
Hardness:
2 - 3 on Mohs scale
Cleavage:
None Observed

Optical Data of UrancalcariteHide

Type:
Biaxial (-)
RI values:
nα = 1.660 nβ = 1.712 nγ = 1.736
2V:
Measured: 67° , Calculated: 66°
Max Birefringence:
δ = 0.076
Image shows birefringence interference colour range (at 30µm thickness)
and does not take into account mineral colouration.
Surface Relief:
High
Dispersion:
weak

Chemical Properties of UrancalcariteHide

Formula:
Ca(UO2)3(CO3)(OH)6 · 3H2O

Crystallography of UrancalcariteHide

Crystal System:
Orthorhombic
Cell Parameters:
a = 15.42 Å, b = 16.08 Å, c = 6.97 Å
Ratio:
a:b:c = 0.959 : 1 : 0.433
Unit Cell V:
1,728.24 ų (Calculated from Unit Cell)

Type Occurrence of UrancalcariteHide

Synonyms of UrancalcariteHide

Other Language Names for UrancalcariteHide

Related Minerals - Nickel-Strunz GroupingHide

5.EA.05UM1997-24-CO:CaCuHUCa2Cu(UO2)2(CO3)2O3 · 3H2O
5.EA.15WyartiteCaU5+(UO2)2(CO3)O4(OH) · 7H2OOrth.
5.EA.20Oswaldpeetersite(UO2)2(CO3)(OH)2 · 4H2OMon. 2/m : P21/b
5.EA.25RoubaultiteCu2(UO2)3(CO3)2O2(OH)2•4H2OTric. 1 : P1
5.EA.30Kamotoite-(Y)Y2(UO2)4(CO3)3O4 · 14H2OMon. 2/m
5.EA.35SharpiteCa(UO2)3(CO3)4 · 3H2OOrth. mmm (2/m 2/m 2/m) : Cmcm

Related Minerals - Hey's Chemical Index of Minerals GroupingHide

11.11.1StichtiteMg6Cr3+2(OH)16[CO3] · 4H2OTrig. 3m (3 2/m) : R3m
11.11.2Rutherfordine(UO2)CO3Orth. mm2 : Imm2
11.11.3Joliotite(UO2)CO3 · nH2OOrth.
11.11.4GrimseliteK3Na(UO2)(CO3)3 · H2OHex.
11.11.5BayleyiteMg2(UO2)(CO3)3 · 18H2OMon.
11.11.6MetazelleriteCa(UO2)(CO3)2 · 3H2OOrth.
11.11.7ZelleriteCa(UO2)(CO3)2 · 5H2OOrth.
11.11.8WyartiteCaU5+(UO2)2(CO3)O4(OH) · 7H2OOrth.
11.11.10SharpiteCa(UO2)3(CO3)4 · 3H2OOrth. mmm (2/m 2/m 2/m) : Cmcm
11.11.11VogliteCa2Cu(UO2)(CO3)4 · 6H2OMon.
11.11.12AndersoniteNa2Ca(UO2)(CO3)3 · 6H2OTrig. 3 : R3
11.11.13SwartziteMgCa(UO2)(CO3)3 · 12H2OMon. 2/m : P21/m
11.11.14RabbittiteCa3Mg3(UO2)2(CO3)6(OH)4 · 18H2OMon.
11.11.15Kamotoite-(Y)Y2(UO2)4(CO3)3O4 · 14H2OMon. 2/m
11.11.16Shabaite-(Nd)Ca(Nd,Sm,Y)2(UO2)(CO3)4(OH)2 · 6H2OTric. 1 : P1
11.11.17Astrocyanite-(Ce)Cu2(Ce,Nd,La)2(UO2)(CO3)5(OH)2 · 1.5H2OHex.
11.11.18Bijvoetite-(Y)Y8(UO2)16(CO3)16O8(OH)8 · 39H2OMon.
11.11.19WidenmannitePb2(OH)2[(UO2)(CO3)2]Orth.
11.11.20ZnucaliteZn12Ca(UO2)(CO3)3(OH)22 · 4H2OOrth.

Other InformationHide

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 UrancalcariteHide

Reference List:
Sort by Year (asc) | by Year (desc) | by Author (A-Z) | by Author (Z-A)
Bulletin de la Société française de Minéralogie et de Cristallographie (1984): 107: 21-24.
American Mineralogist (1985): 70: 438-439.

Internet Links for UrancalcariteHide

Localities for UrancalcariteHide

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.
China
 
  • Hunan
Aizhen Wang (1992): Acta Mineralogica Sinica 12(1), 78-82
Czech Republic
 
  • Karlovy Vary Region
    • Karlovy Vary District
Lapis 2002(7/8), 63-65
DR Congo (TL)
 
  • Haut-Katanga
    • Kambove District
      • Shinkolobwe
Deliens, M., Piret, P. (1984) L'urancalcarite, Ca(UO2)3CO3(OH)6.3H2O, nouveau minéral de Shinkolobwe, Shaba, Zaïre. Bulletin de Minéralogie, 107(1), 21-24.; Deliens, M. (1996) Overzicht van de mineralogie van de koper-, kobalt- en uraniumvoorkomens in Zuid-Shaba (Zaïre). Pages 35-49 in: Schatten der Aarde. Van mineraal tot juweel. Tentoonstelling in de abdij Saint-Gérard de Brogne van 27 april tot 27 oktober 1996. Catalogus opgemaakt onder de leiding van R. Warin, AGAB en P. Van hee, MKA (in Dutch).
France
 
  • Occitanie
    • Hérault
      • Le Puech
[Le Règne Minéral 1997, 13, p.5-18]
Norway
 
  • Buskerud
    • Krødsherad
Kristiansen, R. (1990): Nye sekundære uranmineraler fra Bjertnes, Krødsherad. STEIN 17(1), 25-28
Romania
 
  • Suceava
    • Suceava district
Hîrtopanu P., Udubaşa G., Scott P., Hârtopanu I. (2004) Uranium sulphide mineralisation in the Bistriţa Mts., East Carpathians, Romania. Romanian Journal of Mineral Deposits 81:108-111
 
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