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Belakovskiite

A valid IMA mineral species
This page kindly sponsored by Mark Kucera
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About BelakovskiiteHide

00411750014946560459957.jpg
Dmitriy Belakovskyi
Formula:
Na7(UO2)(SO4)4(SO3OH)(H2O)3
Colour:
Yellow green
Lustre:
Vitreous, Sub-Vitreous
Hardness:
2
Specific Gravity:
2.953 (Calculated)
Crystal System:
Triclinic
Name:
Named in 2013 by Anthony R. Kampf, Jakub Plášil, Anatoly V. Kasatkin, and Joseph Marty in honor of Dimitrii Ilyich Belakovskii (Дмитрий Ильич Белаковский) (b. 4 September 1957), mineralogist and curator of the Fersman Mineralogical Museum, Moscow, Russia.
Third uranyl hydrosulfate after meisserite and later discovered seaborgite. Further similarity to fermiite, klaprothite, natrozippeite, oppenheimerite, ottohahnite, péligotite, and plášilite.


Unique IdentifiersHide

Mindat ID:
45960
Long-form identifier:
mindat:1:1:45960:0
GUID
(UUID V4):
e46872fc-5771-4f97-aab4-c00b940dd704

IMA Classification of BelakovskiiteHide

Classification of BelakovskiiteHide

7.E0.

7 : SULFATES (selenates, tellurates, chromates, molybdates, wolframates)
E : Uranyl sulfates
0 :

Mineral SymbolsHide

As of 2021 there are now IMA–CNMNC approved mineral symbols (abbreviations) for each mineral species, useful for tables and diagrams.

SymbolSourceReference
BkkIMA–CNMNCWarr, L.N. (2021). IMA–CNMNC approved mineral symbols. Mineralogical Magazine, 85(3), 291-320. doi:10.1180/mgm.2021.43

Physical Properties of BelakovskiiteHide

Vitreous, Sub-Vitreous
Transparency:
Transparent
Colour:
Yellow green
Streak:
White
Hardness:
Comment:
Estimated
Tenacity:
Brittle
Cleavage:
None Observed
Fracture:
Irregular/Uneven
Density:
2.953 g/cm3 (Calculated)

Optical Data of BelakovskiiteHide

Type:
Biaxial (+)
RI values:
nα = 1.500 nβ = 1.511 nγ = 1.523
2V:
Measured: 87° , Calculated: 88°
Birefringence:
0.023
Max Birefringence:
δ = 0.023
Image shows birefringence interference colour range (at 30µm thickness)
and does not take into account mineral colouration.
Surface Relief:
Low
Optical Extinction:
X ~ a.
Pleochroism:
Non-pleochroic

Chemistry of BelakovskiiteHide

Mindat Formula:
Na7(UO2)(SO4)4(SO3OH)(H2O)3

Crystallography of BelakovskiiteHide

Crystal System:
Triclinic
Class (H-M):
1 - Pinacoidal
Space Group:
P1
Setting:
P1
Cell Parameters:
a = 5.4581(3) Å, b = 11.3288(6) Å, c = 18.4163(13) Å
α = 104.786(7)°, β = 90.092(6)°, γ = 96.767(7)°
Ratio:
a:b:c = 0.482 : 1 : 1.626
Unit Cell V:
1,092.77 ų (Calculated from Unit Cell)
Z:
2
Morphology:
Hair-like fibers, elongated on [100] and slightly flattened on {021}.
Comment:
P1¯

Crystal StructureHide

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IDSpeciesReferenceLinkYearLocalityPressure (GPa)Temp (K)
0020475BelakovskiiteKampf A R, Plasil J, Kasatkin A V, Marty J (2014) Belakovskiite, Na7(UO2)(SO4)4(SO3OH)(H2O)3, a new uranyl sulfate mineral from the Blue Lizard mine, San Juan County, Utah, USA Mineralogical Magazine 78 639-6492014Blue Lizard mine, San Juan County, Utah, USA0293
CIF Raw Data - click here to close

X-Ray Powder DiffractionHide

Powder Diffraction Data:
d-spacingIntensity
8.96 Å(35)
8.46 Å(29)
5.19 Å(100)
4.66 Å(58)
3.568 Å(37)
3.057 Å(59)
2.930 Å(27)
1.832 Å(29)
Comments:
From Type Description.

Geological EnvironmentHide

Paragenetic Mode(s):
Paragenetic ModeEarliest Age (Ga)
Stage 7: Great Oxidation Event<2.4
47a : [Near-surface hydration of prior minerals]
47b : [Sulfates and sulfites]
47f : [Uranyl (U⁶⁺) minerals]
Stage 10b: Anthropogenic minerals<10 Ka
55 : Anthropogenic mine minerals

Type Occurrence of BelakovskiiteHide

General Appearance of Type Material:
Yellow green acicular crystals. Crystals of belakovskiite are very pale yellowish-green hair-like fibres up to 2 mm long and usually no more than a few μm in diameter. The fibres are elongated on [100] and slightly flattened on {021}.
Place of Conservation of Type Material:
Type material is deposited in the collections of the Natural History Museum of Los Angeles County, Los Angeles, California, USA, catalogue number 64055, and the Fersman Mineralogical Museum of the Russian Academy of Sciences, Moscow, Russia, registration
Geological Setting of Type Material:
Sandstone/siltstone layers containing uraninite and secondary copper mineralssecodndary species.
Associated Minerals at Type Locality:
Reference:
Kampf, A.R., Plášil, J., Kasatkin, A.V., Marty, J. (2014) Belakovskiite, Na7(UO2)(SO4)4(SO3OH)(H2O)3, a new uranyl sulfate mineral from the Blue Lizard mine, San Juan County, Utah, USA. Mineralogical Magazine: 78: 639-649.

Synonyms of BelakovskiiteHide

Common AssociatesHide

Associated Minerals Based on Photo Data:
2 photos of Belakovskiite associated with Sandstone
2 photos of Belakovskiite associated with Lussierite Na10[(UO2)(SO4)4](SO4)2 · 3(H2O)
1 photo of Belakovskiite associated with IvsiteNa3H(SO4)2
1 photo of Belakovskiite associated with SideronatriteNa2Fe(SO4)2(OH) · 3H2O
1 photo of Belakovskiite associated with BobcookiteNaAl(UO2)2(SO4)4 · 18H2O
1 photo of Belakovskiite associated with MeisseriteNa5(UO2)(SO4)3(SO3OH)(H2O)

Related Minerals - Strunz-mindat GroupingHide

7.E0.BěhounekiteU(SO4)2(H2O)4 Orth. mmm (2/m 2/m 2/m) : Pnma

Other InformationHide

Notes:
Water soluble.
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 BelakovskiiteHide

References for BelakovskiiteHide

Localities for BelakovskiiteHide

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 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.
USA (TL)
 
  • Utah
    • San Juan County
      • Red Canyon Mining District
Williams et al. (2013) +2 other references
 
矿物 and/or 产地  
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