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⇱ Bouškaite: Mineral information, data and localities.

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Bouškaite

A valid IMA mineral species
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About BouškaiteHide

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Formula:
(MoO2)2O(SO3OH)2(H2O)4
Colour:
Colorless to light beige
Lustre:
Vitreous
Hardness:
2
Specific Gravity:
2.40
Crystal System:
Triclinic
Name:
Named in honor of Vladimír Bouška (11 April 1933, Horusice u Veselí nad Lužnicí - 24 July 2000, Prague, Czech Republic), mineralogist, geochemist, and professor at Charles University, Prague, Czech Republic. He wrote hundreds of papers on varying topics of mineralogy and related fields. He was also an authority on natural glass.
New structure type. The first molybdenum sulfate mineral (but not unique chemical combination). Second molybdenyl-bearing mineral after vajdakite (the third species is hasanovite - another molybdenyl sulfate mineral).

Also compare the chemically similar liangjunite, novikovite, and vanpeltite.


Name EncodingHide

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Latin-1:
Bouskaite
ASCII-7:
Bouskaite

Unique IdentifiersHide

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Mindat ID:
53373
Long-form identifier:
mindat:1:1:53373:5

IMA Classification of BouškaiteHide

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Approved
IMA Formula:
(MoO2)2O(SO3OH)2(H2O)2 · 2H2O
Approval year:
2019
First published:
2019

Classification of BouškaiteHide

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7.DE.50

7 : SULFATES (selenates, tellurates, chromates, molybdates, wolframates)
D : Sulfates (selenates, etc.) with additional anions, with H2O
E : With only medium-sized cations; unclassified

Mineral SymbolsHide

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

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

Physical Properties of BouškaiteHide

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Vitreous
Transparency:
Transparent, Translucent
Colour:
Colorless to light beige
Streak:
White to light grey
Hardness:
Tenacity:
Brittle
Cleavage:
Perfect
On {001}
Fracture:
Irregular/Uneven
Comment:
Thin blades (fibers) are somewhat flexible
Density:
2.40(2) g/cm3 (Measured)    2.38 g/cm3 (Calculated)

Optical Data of BouškaiteHide

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Type:
Biaxial (+)
RI values:
nα = 1.504(2) nβ = 1.605(2) nγ = 1.705(3)
2V:
Measured: 82° (1), Calculated: 82.05°
Max. Birefringence:
δ = 0.201
Based on recorded range of RI values above.

Interference Colours:
The colours simulate birefringence patterns seen in thin section under crossed polars. They do not take into account mineral colouration or opacity.

Michel-Levy Bar The default colours simulate the birefringence range for a 30 µm thin-section thickness. Adjust the slider to simulate a different thickness.

Grain Simulation You can rotate the grain simulation to show how this range might look as you rotated a sample under crossed polars.

Surface Relief:
Moderate
Dispersion:
Moderate, r > v
Pleochroism:
Non-pleochroic
Comments:
X∧c = 24°; Y∧a = 20°; Z∧b = 16°.

Chemistry of BouškaiteHide

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Mindat Formula:
(MoO2)2O(SO3OH)2(H2O)4
Element Weights:
Element% weight
O50.545 %
Mo35.665 %
S11.917 %
H1.873 %

Calculated from ideal end-member formula.

Crystallography of BouškaiteHide

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Crystal System:
Triclinic
Class (H-M):
1 - Pinacoidal
Space Group:
P1
Cell Parameters:
a = 5.581(3) Å, b = 9.572(1) Å, c = 14.425(4) Å
α = 97.43(1)°, β = 100.05(2)°, γ = 89.96(1)°
Ratio:
a:b:c = 0.583 : 1 : 1.507
Unit Cell V:
752.2 ų
Z:
2
Morphology:
Flattened on {001} and elongated along [100]. The dominant form is {001}; other likely forms include prisms built from the pinacoids {010}, {011} and {01-1} and pinacoids {100} and {10-1}.

X-Ray Powder DiffractionHide

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Powder Diffraction Data:
d-spacingIntensity
14.15 Å(35)
7.078 Å(100)
5.483 Å(6)
5.440 Å(9)
4.838 Å(7)
4.720 Å(56)
4.010 Å(7)
3.240 Å(10)

Geological EnvironmentHide

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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]

Type Occurrence of BouškaiteHide

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General Appearance of Type Material:
Randomly or radially arranged fibers up to 7 mm in length formed by multiple sub-parallel intergrowths of very narrow blades on weathered quartz gangue.
Place of Conservation of Type Material:
Collections of (1) the Department of Mineralogy and Petrology, National Museum Prague, Cirkusová 1740, CZ-193 00 Praha 9, Czech Republic, catalogue number P1P 24/2018 (holotype), and (2) the Natural History Museum of Los Angeles County, 900 Exposition Boulevard, Los Angeles, CA 90007, USA, catalogue number 66776 (cotype)
Geological Setting of Type Material:
Supergene mineral, probably relatively recently formed in the relatively dry parts of the mine dump material by weathering of primary jordisite and pyrite.

Synonyms of BouškaiteHide

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Other Language Names for BouškaiteHide

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German:Bouškait

Common AssociatesHide

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Associated Minerals Based on Photo Data:
1 photo of Bouškaite associated with PyriteFeS2

Related Minerals - Strunz-mindat GroupingHide

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7.DE.MagnesioalteriteMg2Fe3+4(SO4)4(C2O4)2(OH)4 · 17H2OMon. 2/m : B2/b
7.DE.FabritziteZn9(SO4)2(OH)12Cl2 · 6H2OTrig. 3 : R3
7.DE.Cossaite(Mg0.5,◻)Al6(SO4)6(HSO4)F6 · 36H2OTrig. 3 : R3
7.DE.DownsiteK2(MoO3)3(SO4) · 4H2OMon. 2/m : B2/m
7.DE.LiangjuniteK2(Mo2O5)(SO4)2 · 3H2OTric. 1 : P1
7.DE.05MangazeiteAl2(SO4)(OH)4 · 3H2OTric.
7.DE.10'UKI-1975-(SO:AlCu)'(Cu, Al, SO4, H2O)
7.DE.10CarbonatecyanotrichiteCu4Al2(CO3,SO4)(OH)12 · 2H2OMon. 2/m : B2/m
7.DE.10CyanotrichiteCu4Al2(SO4)(OH)12 · 2H2OMon. 2/m : B2/m
7.DE.15SchwertmanniteFe3+16(OH,SO4)12-13O16 · 10-12H2OTet.
7.DE.20TlalociteCu10Zn6(Te6+O4)2(Te4+O3)(OH)25Cl · 27H2OOrth.
7.DE.25UtahiteMgCu4Zn2Te6+3O14(OH)4 · 6H2OTric. 1 : P1
7.DE.35CoquanditeSb6+xO8+x(SO4)(OH)x(H2O)1- x (x = 0.3)Tric. 1 : P1
7.DE.40OsakaiteZn4(SO4)(OH)6 · 5H2OTric. 1 : P1
7.DE.42AlteriteZn2Fe3+4(SO4)4(C2O4)2(OH)4 · 17H2OMon. 2/m : B2/b
7.DE.45BarrotiteCu9Al(HSiO4)2[(SO4)(HAsO4)0.5](OH)12 · 8H2OTrig. 3
7.DE.45WilcoxiteMgAl(SO4)2F · 17H2OTric. 1 : P1
7.DE.47Tiberiobardiite{Cu9Al[SiO3(OH)]2(OH)12(H2O)6}(SO4)1.5 · 10H2OTrig. 3 : R3
7.DE.50Stanleyite(V4+O)(SO4) · 6H2OOrth.
7.DE.57'Khangalasite'Fe(SO4)(OH) · 2H2OTric.
7.DE.60HydrobasaluminiteAl4(SO4)(OH)10 · 12-36H2OMon.
7.DE.62VolaschioiteFe4(SO4)O2(OH)6 · 2H2OMon. 2/m : B2/m
7.DE.65ZaheriteAl12(SO4)5(OH)26 · 20H2OTric.
7.DE.75CamérolaiteCu6Al3(OH)18(H2O)2[Sb(OH)6](SO4)Tric. 1 : P1

Fluorescence of BouškaiteHide

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Does not fluoresce under either short- or long-wave ultraviolet light.

Other InformationHide

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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 BouškaiteHide

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mindat.org URL:
https://www.mindat.org/min-53373.html
Please feel free to link to this page.

References for BouškaiteHide

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Localities for BouškaiteHide

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Showing 3 localities.

This map shows a selection of localities that have latitude and longitude coordinates recorded. Click on the 👁 Image
symbol to view information about a locality. The 👁 Image
symbol next to localities in the list can be used to jump to that position on the map.

Locality ListHide

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👁 Image
- This locality has map coordinates listed. 👁 Image
- This locality has estimated coordinates. ⓘ - Click for references and further information on this occurrence. ? - Indicates mineral may be doubtful at this locality. 👁 Image
- Good crystals or important locality for species. 👁 Image
- 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.
Czech Republic
  • Central Bohemian Region
    • Příbram District
      • Příbram
        • Březové Hory
          • Černojamské deposit
Sejkora et al. (2020)
European Journal of Mineralogy +1 other reference
USA
  • New Mexico
    • Luna County
      • Cookes Peak Mining District
Yang et al. (2023)
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