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Pushcharovskite

A valid IMA mineral species
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About PushcharovskiteHide

05912700017271928964335.jpg
Prof. Dmitry Yurievich Pushcharovsky
Formula:
K0.6Cu18[AsO2(OH)2]4[AsO3OH]10(AsO4)(OH)9.6 · 18.6H2O
Note: Although the type material was described as having very minor essential K, synthetic material and K-free finds from other localities (e.g. Lavrion) show that K is not essential.
Colour:
Colorless to light green
Lustre:
Vitreous
Specific Gravity:
3.35
Crystal System:
Triclinic
Name:
Named after Prof. Dmitry Yurievich Pushcharovsky (b. 1944), crystallographer, Moscow State University, Russia.
This page provides mineralogical data about Pushcharovskite.


Unique IdentifiersHide

Mindat ID:
7258
Long-form identifier:
mindat:1:1:7258:4

IMA Classification of PushcharovskiteHide

Approved
IMA Formula:
K0.6Cu2+18[As5+O2(OH)2]4[As5+O3OH]10(As5+O4)(OH)9.6·18.6H2O
Approval year:
1995
First published:
1997

Classification of PushcharovskiteHide

8.CA.55

8 : PHOSPHATES, ARSENATES, VANADATES
C : Phosphates without additional anions, with H2O
A : With small and large/medium cations

Mineral SymbolsHide

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

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

Physical Properties of PushcharovskiteHide

Vitreous
Transparency:
Transparent
Colour:
Colorless to light green
Streak:
White
Tenacity:
Fragile
Cleavage:
Perfect
Perfect {010} and good {001}
Fracture:
Fibrous
Density:
3.35(2) g/cm3 (Measured)    3.34(1) g/cm3 (Calculated)

Optical Data of PushcharovskiteHide

Type:
Biaxial (+)
RI values:
nα = 1.602(2) nβ = 1.642(2) nγ = 1.725(5)
2V:
Measured: 70° (3), Calculated: 73°
Max. Birefringence:
δ = 0.123
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. Each grain retains its interference colour (retardation) while its brightness falls to black at extinction and reaches a maximum between extinction positions.

Surface Relief:
Moderate
Dispersion:
r > v medium
Pleochroism:
Non-pleochroic

Chemistry of PushcharovskiteHide

Mindat Formula:
K0.6Cu18[AsO2(OH)2]4[AsO3OH]10(AsO4)(OH)9.6 · 18.6H2O

Note: Although the type material was described as having very minor essential K, synthetic material and K-free finds from other localities (e.g. Lavrion) show that K is not essential.
Element Weights:
Element% weight
Cu33.471 %
As32.886 %
O32.787 %
H0.857 %
K0.000 %

Calculated from ideal end-member formula.

Crystallography of PushcharovskiteHide

Crystal System:
Triclinic
Cell Parameters:
a = 6.435(2) Å, b = 11.257(4) Å, c = 18.662(9) Å
α = 74.90(6)°, β = 86.48(7)°, γ = 83.59(4)°
Ratio:
a:b:c = 0.572 : 1 : 1.658
Unit Cell V:
1,296.28 ų (Calculated from Unit Cell)
Z:
12
Morphology:
Type material: individual crystals are elongate [100] to 0.5 mm, flattened on (010) to 0.04 mm width, showing {010}.
Twinning:
Polysynthetically twinned on (010)
Comment:
Point Group: 1 or 1; Space Group: P1 or P1.

Crystal StructureHide

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IDSpeciesReferenceLinkYearLocalityPressure (GPa)Temp (K)
0006814PushcharovskitePushcharovsky D Y, Teat S J, Zaitsev V N, Zubkova N V, Sarp H (2000) Crystal structure of pushcharovskite European Journal of Mineralogy 12 95-10420000293
CIF Raw Data - click here to close

X-Ray Powder DiffractionHide

Powder Diffraction Data:
d-spacingIntensity
18.3 Å(25)
11.00 Å(100)
3.171 Å(30)
2.952 Å(50)
2.920 Å(60)
2.816 Å(50)
2.492 Å(25)

Geological EnvironmentHide

Paragenetic Mode(s):

Type Occurrence of PushcharovskiteHide

General Appearance of Type Material:
Colorless to light green tufts and acicular, radial fibrous aggregates to 1 mm in diameter
Place of Conservation of Type Material:
Department of Mineralogy, Natural History Museum of Geneva, Switzerland
Associated Minerals at Type Locality:

Synonyms of PushcharovskiteHide

Other Language Names for PushcharovskiteHide

Common AssociatesHide

Associations Based on Photo Data:
29 photos of Pushcharovskite associated with YvoniteCu(HAsO4) · 2H2O
13 photos of Pushcharovskite associated with GeminiteCu2+(AsO3OH) · H2O
7 photos of Pushcharovskite associated with Native BismuthBi
2 photos of Pushcharovskite associated with MahnertiteNaCu3(AsO4)2Cl · 5H2O
1 photo of Pushcharovskite associated with ArsenopyriteFeAsS

Related Minerals - Strunz-mindat GroupingHide

8.CA.ApexiteNaMg(PO4) · 9H2OTric. 1 : P1
8.CA.BrandãoiteBeAl2(PO4)2(OH)2(H2O)5Tric. 1 : P1
8.CA.DavidlloyditeZn3(AsO4)2 · 4H2OTric. 1 : P1
8.CA.05ParafransoletiteCa3Be2(PO4)2(PO3OH)2 · 4H2OTric. 1 : P1
8.CA.05FransoletiteCa3Be2(PO4)2(PO3OH)2 · 4H2OMon. 2/m : P21/b
8.CA.10EhrleiteCa4Be3Zn2(PO4)6 · 9H2OTric. 1 : P1
8.CA.15FaheyiteBe2Mn2+Fe3+2(PO4)4 · 6H2OTrig. 32 : P3121
8.CA.20MccrillisiteNaCs(Be,Li)Zr2(PO4)4 · 1-2H2OTet. 4/mmm(4/m2/m2/m) : I41/amd
8.CA.20GainesiteNa(Na,K)(Be,Li)Zr2(PO4)4 · 1.5-2H2OTet. 4mm : I41md
8.CA.20SelwyniteNaK(Be,Al)Zr2(PO4)4 · 2H2OTet. 4/mmm(4/m2/m2/m) : I41/amd
8.CA.25PahasapaiteLi8(Ca,Li,K)10.5Be24(PO4)24 · 38H2OIso. 23 : I23
8.CA.30NizamoffiteMn2+Zn2(PO4)2(H2O)4Orth. mmm(2/m2/m2/m) : Pbcm
8.CA.30ArsenohopeiteZn3(AsO4)2 · 4H2OOrth. mmm(2/m2/m2/m) : Pnma
8.CA.30HopeiteZnZn2(PO4)2 · 4H2OOrth. mmm(2/m2/m2/m) : Pnma
8.CA.35WarikahniteZn3(AsO4)2 · 2H2OTric. 1 : P1
8.CA.40PhosphophylliteZn2Fe 2+(PO4)2 · 4H2OMon. 2/m : P21/b
8.CA.42SteinmetziteZn2Fe3+(PO4)2(OH) · 3H2OTric. 1 : P1
8.CA.45ParascholziteCaZn2(PO4)2 · 2H2OMon.
8.CA.45ScholziteCaZn2(PO4)2 · 2H2OOrth. mmm(2/m2/m2/m) : Pbcm
8.CA.50KeyiteCu2+3Zn4Cd2(AsO4)6 · 2H2OMon. 2/m
8.CA.60ProsperiteCa2Zn4(AsO4)4 · H2OMon.
8.CA.65GengenbachiteKFe3+3(PO3OH)4[PO2(OH)2]2 · 6H2OTrig. 3m : P31c
8.CA.70ParahopeiteZn3(PO4)2 · 4H2OTric. 1 : P1
8.CA.70ReaphookhilliteMgZn2(PO4)2 · 4H2OTric. 1 : P1
8.CA.75StergiouiteCaZn2(AsO4)2 · 4H2OMon. m : Pb
8.CA.80LimousiniteBaCa[Be4P4O16] · 6H2OMon. 2/m : P21/b
8.CA.85MinjiangiteBaBe2(PO4)2Hex. 6/mmm(6/m2/m2/m) : P6/mmm
8.CA.85Wilancookite(Ba5Li2◻)Ba6Be24P24O96 · 26H2OIso. 23 : I23

RadioactivityHide

Fluorescence of PushcharovskiteHide

Not fluorescent

Other InformationHide

Notes:
Soluble in dilute HCl
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 PushcharovskiteHide

References for PushcharovskiteHide

Localities for PushcharovskiteHide

Showing 5 localities.

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.
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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.
Czech Republic
 
  • Karlovy Vary Region
    • Karlovy Vary District
M.E. Ciriotti - 04.06.2008 - Probed
France
 
  • Occitanie
    • Aude
      • Carcassonne
        • Salsigne
Sarp et al. (1997) +1 other reference
  • Provence-Alpes-Côte d'Azur
    • Var
      • Toulon
        • Le Pradet
Sarp et al. (1997) +1 other reference
Greece
 
  • Attica
    • East Attica
      • Lavreotiki
        • Agios Konstantinos (Kamariza)
          • Kamariza Mines (Kamareza Mines)
Branko Rieck collection (self-collected, PXRD- and SEM-EDS-analysed by Petra Marschner in January 2020) +2 other references
Morocco
 
  • Drâa-Tafilalet Region
    • Ouarzazate Province
      • Amerzgane Cercle
        • Ouisselsate Caïdat
Georges FAVREAU collection & EDX ...
 
and/or  
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