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Stranskiite

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About StranskiiteHide

Ivan Nikolov Stranski
Formula:
Zn2Cu(AsO4)2
Colour:
Cyan-blue
Lustre:
Vitreous
Hardness:
4
Specific Gravity:
5.23 - 5.3
Crystal System:
Triclinic
Name:
Honoring Professor Iwan Nikolow Stranski (1897–1979), German chemist and physicist, Berlin, Germany. Stranski did groundbreaking work on crystal growth.
This page provides mineralogical data about Stranskiite.


Classification of StranskiiteHide

Approved
8.AB.35

8 : PHOSPHATES, ARSENATES, VANADATES
A : Phosphates, etc. without additional anions, without H2O
B : With medium-sized cations
Dana 7th ed.:
38.3.7.1
38.3.7.1

38 : ANHYDROUS NORMAL PHOSPHATES, ARSENATES, AND VANADATES
3 : (AB)3(XO4)2
20.3.7

20 : Arsenates (also arsenates with phosphate, but without other anions)
3 : Arsenates of Zn, Cd or Hg

Physical Properties of StranskiiteHide

Vitreous
Transparency:
Transparent
Colour:
Cyan-blue
Hardness:
Cleavage:
Distinct/Good
Good on {010}, indistinct on {100} {001} {101}
Density:
5.23 - 5.3 g/cm3 (Measured)    5.05(5) g/cm3 (Calculated)

Optical Data of StranskiiteHide

Type:
Biaxial (-)
RI values:
nα = 1.795 nβ = 1.842 nγ = 1.874
2V:
Measured: 80° , Calculated: 76°
Max Birefringence:
δ = 0.079
Image shows birefringence interference colour range (at 30µm thickness)
and does not take into account mineral colouration.
Surface Relief:
Very High
Dispersion:
r << v

Chemical Properties of StranskiiteHide

Formula:
Zn2Cu(AsO4)2
IMA Formula:
CuZn2(AsO4)2
Idealised Formula:
(Zn,Cu)3(AsO4)2

Crystallography of StranskiiteHide

Crystal System:
Triclinic
Class (H-M):
1 - Pinacoidal
Space Group:
P1
Cell Parameters:
a = 5.07 Å, b = 6.66 Å, c = 5.26 Å
α = 109.85°, β = 112.14°, γ = 86.88°
Ratio:
a:b:c = 0.761 : 1 : 0.79
Unit Cell V:
154.19 ų (Calculated from Unit Cell)
Z:
1
Morphology:
Tabular crystals in radiating aggregates and massive

Type Occurrence of StranskiiteHide

Geological Setting of Type Material:
Oxidation zone of dolostone hosted hydrothermal metal deposit.

Other Language Names for StranskiiteHide

Common AssociatesHide

Associated Minerals Based on Photo Data:
Leiteite1 photo of Stranskiite associated with Leiteite on mindat.org.
O'Danielite1 photo of Stranskiite associated with O'Danielite on mindat.org.

Related Minerals - Nickel-Strunz GroupingHide

8.AB.BorisenkoiteCu3[(V,As)O4]2Mon. 2/m : P21/b
8.AB.05FarringtoniteMg3(PO4)2Mon. 2/m
8.AB.10FerrisickleriteLi1-x(Fe3+xFe2+1-x)PO4Orth.
8.AB.10Heterosite(Fe3+,Mn3+)PO4Orth. mmm (2/m 2/m 2/m) : Pmna
8.AB.10LithiophiliteLiMn2+PO4Orth. mmm (2/m 2/m 2/m) : Pmna
8.AB.10NatrophiliteNaMn2+PO4Orth. mmm (2/m 2/m 2/m) : Pmna
8.AB.10Purpurite(Mn3+,Fe3+)PO4Orth. mmm (2/m 2/m 2/m) : Pmna
8.AB.10SickleriteLi1-x(Mn3+xMn2+1-x)PO4Orth.
8.AB.10SimferiteLi(Mg,Fe3+,Mn3+)2(PO4)2Orth.
8.AB.10TriphyliteLiFe2+PO4Orth. mmm (2/m 2/m 2/m) : Pmna
8.AB.10KarenwebberiteNa(Fe2+,Mn2+)PO4Orth. mmm (2/m 2/m 2/m) : Pnma
8.AB.15Sarcopside(Fe2+,Mn2+,Mg)3(PO4)2Mon. 2/m : P21/b
8.AB.15Chopinite(Mg,Fe2+)3(PO4)2Mon. 2/m : P21/b
8.AB.20BeusiteMn2+Mn2+2 (PO4)2Mon.
8.AB.20GraftoniteFe2+Fe2+2(PO4)2Mon. 2/m : P21/b
8.AB.25XanthiositeNi3(AsO4)2Mon. 2/m : P21/b
8.AB.30LammeriteCu3(AsO4)2Mon.
8.AB.30Lammerite-βCu3(AsO4)2Mon. 2/m : P21/b
8.AB.35McbirneyiteCu3(VO4)2Tric.
8.AB.35PseudolyonsiteCu3(VO4)2Mon. 2/m : P21/b
8.AB.40LyonsiteCu3Fe4(VO4)6Orth.

Related Minerals - Hey's Chemical Index of Minerals GroupingHide

20.3.1AdamiteZn2(AsO4)(OH)Orth. mmm (2/m 2/m 2/m) : Pnnm
20.3.2ParadamiteZn2(AsO4)(OH)Tric. 1 : P1
20.3.3KoritnigiteZn(HAsO4) · H2OTric. 1 : P1
20.3.4LegranditeZn2(AsO4)(OH) · H2OMon. 2/m : P21/b
20.3.5WarikahniteZn3(AsO4)2 · 2H2OTric.
20.3.6KöttigiteZn3(AsO4)2 · 8H2OMon. 2/m : B2/m
20.3.8Philipsburgite(Cu,Zn)6(AsO4,PO4)2(OH)6 · H2OMon.
20.3.9AustiniteCaZn(AsO4)(OH)Orth. 2 2 2 : P21 21 21
20.3.10ProsperiteCa2Zn4(AsO4)4 · H2OMon.
20.3.11GaititeCa2Zn(AsO4)2 · 2H2OTric.
20.3.12ZincroseliteCa2Zn(AsO4)2 · 2H2OMon.
20.3.13O'DanieliteNa(Zn,Mg)3H2(AsO4)3Mon. 2/m : B2/b
20.3.14JohilleriteNa(Mg,Zn)3Cu(AsO4)3Mon. 2/m : B2/b
20.3.15Holdenite(Mn2+,Mg)6Zn3(AsO4)2(SiO4)(OH)8Orth. mmm (2/m 2/m 2/m) : Ccca
20.3.16Chudobaite(Mg,Zn)5(AsO4)2(HAsO4)2 · 10H2OTric.
20.3.17Chlorophoenicite(Mn,Mg)3Zn2(AsO4)(OH,O)6Mon. 2/m : B2/m
20.3.18LotharmeyeriteCa(Zn,Mn3+)2(AsO4)2 · 2(H2O,OH)Mon. 2/m : B2/m
20.3.19Metaköttigite(Zn,Fe,Fe)3(AsO4)2 · 8(H2O,OH)Tric. 1 : P1
20.3.20OjuelaiteZnFe3+2(AsO4)2(OH)2 · 4H2OMon.
20.3.21FahleiteCaZn5Fe3+2(AsO4)6 · 14H2OOrth.
20.3.22KeyiteCu2+3Zn4Cd2(AsO4)6 · 2H2OMon. 2/m

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 StranskiiteHide

Reference List:
Sort by Year (asc) | by Year (desc) | by Author (A-Z) | by Author (Z-A)
Strunz, H. (1960) Stranskiit, ein neues Mineral. Naturwiss., 47, 376 (in German).
American Mineralogist (1960): 45: 1315 (abstract).
Plieth, K. & Sänger, G. (1967): Die Struktur des Stranskiits Zn2Cu(AsO4)2. Zeitschrift für Kristallographie 124, 91-100.
Calvo, C., Leung, K. Y. (1969): Refinement of the structure of stranskiite. Zeitschrift für Kristallographie 130, 231-233.
Hänni, H.A., Stern, W.B. and Glor, M. (1978): New data on stranskiite from Tsumeb, Namibia. American Mineralogist 63, 213-215.
Keller, P., Hess, H. and Dunn, P.J. (1979): Die Ladungsbilanz für eine verfeinerte Kristallstruktur von Stranskiit, Zn2Cu(AsO4)2. Tschermaks Mineralogische und Petrographische Mitteilungen 26, 167-174.

Internet Links for StranskiiteHide

Localities for StranskiiteHide

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.
Austria
 
  • Tyrol
    • North Tyrol
      • Inn valley
        • Brixlegg - Schwaz area
          • Brixlegg - Rattenberg
Schnorrer, G. & Poeverlein, R. (2005): Schwaz-Brixlegger-Fundstellen: 3. Die Minerale vom Bergbau Maukenötz bei Brixlegg, Tirol. Der Aufschluss, 56, 223-234.
Schnorrer+Poeverlein (2005)
Germany
 
  • North Rhine-Westphalia
    • Sauerland
      • Iserlohn
        • Letmathe
Bender, D. and Krimmelbein, W. (1994) Aktuelle Übersicht: Mineralien der Zinkhütte Genna/Sauerland. Stand Juni 1994. Mineralien-Welt, 4/94, 10.; Wittern, A. (2001) Mineralfundorte in Deutschland.
  • Rhineland-Palatinate
    • Rhein-Lahn-Kreis
Wittern: "Mineralfundorte in Deutschland", 2001
        • Frücht
Der Aufschluss Vol.55, March/April 2004
Namibia (TL)
 
  • Oshikoto Region
    • Tsumeb
Strunz, H. (1960) Stranskiit, ein neues Mineral. Naturwiss., 47, 376 (in German); American Mineralogist (1960): 45: 1315 (abstract); Hänni, H.A., W.B. Stern, and M. Glor (1978) New data on stranskiite from Tsumeb, Namibia. American Mineralogist (1978): 63: 213-215; J.W. Anthony, R.A. Bideaux, K.W. Bladh, M.C. Nichols: Handbook of Mineralogy, Vol. IV (2000).
Tajikistan
 
  • Viloyati Sogd (Viloyati Sughd; Viloyati Khodzhent; Viloyati Leninabad)
    • Zeravshan Range
      • Yagnob River
Van King
Mineral and/or Locality  
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