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Arzrunite

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Andreas E. Arzruni
Formula:
Cu4Pb2(SO4)(OH)4Cl6 · 2H2O (?)
System:
Orthorhombic
Colour:
Blue, blue-green
Name:
After Andreas Eremeevich Arzruni (1847-1898), Professor of Mineralogy at Aachen, Germany, who first recognized the mineral.
An uncertain mineral. Possibly a mixture.
Originally reported from Buena Esperanza Mine, Challacollo, Iquique Province, Tarapacá Region, Chile.


Classification of Arzrunite

Approved, 'Grandfathered' (first described prior to 1959), Questionable
7.DF.60

7 : SULFATES (selenates, tellurates, chromates, molybdates, wolframates)
D : Sulfates (selenates, etc.) with additional anions, with H2O
F : With large and medium-sized cations
12.1.8.1

12 : COMPOUND HALIDES
1 : Miscellaneous

Physical Properties of Arzrunite

Colour:
Blue, blue-green

Optical Data of Arzrunite

Type:
Biaxial
Dispersion:
r > v strong
Pleochroism:
Strong
Comments:
Blue and nearly colourless parallel to the horizontal axes.

Chemical Properties of Arzrunite

Formula:
Cu4Pb2(SO4)(OH)4Cl6 · 2H2O (?)
IMA Formula:
Pb2Cu4SO4(OH)4Cl6 · 2H2O
Elements listed in formula:

Crystallography of Arzrunite

Crystal System:
Orthorhombic
Morphology:
Druses of minute prismatic crystals with {110}, {010}, {001}, and small modifying faces of {111} and {021}.

Relationship of Arzrunite to other Species

7.DF.05UklonskoviteNaMg(SO4)F · 2H2O
7.DF.10KainiteKMg(SO4)Cl · 3H2O
7.DF.15NatrochalciteNaCu2(SO4)2(OH) · 2H2O
7.DF.20MetasideronatriteNa2Fe(SO4)2(OH) · H2O
7.DF.20SideronatriteNa2Fe(SO4)2(OH) · 3H2O
7.DF.25DespujolsiteCa3Mn4+(SO4)2(OH)6 · 3H2O
7.DF.25FleischeritePb3Ge(SO4)2(OH)6 · 3H2O
7.DF.25SchaurteiteCa3Ge(SO4)2(OH)6 · 4H2O
7.DF.25MallestigitePb3Sb5+(SO4)(AsO4)(OH)6 · 3H2O
7.DF.30Slavíkite(H3O+)3Mg6Fe15(SO4)21(OH)18 · 98H2O
7.DF.35MetavoltineNa6K2FeFe6(SO4)12O2 · 18H2O
7.DF.40LannoniteMg2Ca4Al4(SO4)8F8 · 24H2O
7.DF.40VlodavetsiteAlCa2(SO4)2F2Cl · 4H2O
7.DF.45PeretaiteCa(SbO)4(SO4)2(OH)2 · 2H2O
7.DF.50GordaiteNaZn4(SO4)(OH)6Cl · 6H2O
7.DF.55Clairite(NH4)2Fe3(SO4)4(OH)3 · 3H2O
7.DF.65ElyitePb4Cu(SO4)O2(OH)4 · H2O
7.DF.70YecoraiteFe33+Bi5(Te6+O4)2(Te4+O3)O9 · 9H2O
7.DF.75RiomarinaiteBi(SO4)(OH) · H2O
7.DF.80DukeiteBi243+Cr86+O57(OH)6 · 3H2O
7.DF.85XocolatliteCa2Mn24+(Te6+O6)2 · H2O

Other Names for Arzrunite

Name in Other Languages:
German:Arzrunit
Spanish:Arzrunita

Other Information

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 Arzrunite

Reference List:
Arzruni, A., Thaddeeff, K. (1899) Neue Minerale aus Chile, ein neues Vorkommen von Utahit und ein neues Wismuthcarbonat von Schneeberg. Zeitschrift für Kristallographie, Mineralogie und Petrographie, Leipzig: 31: 229-247.

Palache, C., Berman, H., Frondel, C. (1951) The System of Mineralogy of James Dwight Dana and Edward Salisbury Dana, Yale University 1837-1892, Volume II: Halides, Nitrates, Borates, Carbonates, Sulfates, Phosphates, Arsenates, Tungstates, Molybdates, Etc. John Wiley and Sons, Inc., New York, 7th edition, revised and enlarged: 130-131.

Internet Links for Arzrunite

mindat.org URL:
https://www.mindat.org/min-381.html
Please feel free to link to this page.

Localities for Arzrunite

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.
(TL) indicates type locality for a valid mineral species. (FRL) indicates first recorded locality for everything else. ? indicates mineral may be doubtful at this locality. All other localities listed without reference should be considered as uncertain and unproven until references can be found.
Chile
 
  • Tarapacá Region
    • El Tamarugal Province
      • Challacollo
Zeits. Krist. Min. 31 (1899), 230; Palache, C., Berman, H., & Frondel, C. (1951), The System of Mineralogy of James Dwight Dana and Edward Salisbury Dana, Yale University 1837-1892, Volume II: 130.
Greece
 
  • Attikí Prefecture (Attica; Attika)
    • Lavrion District (Laurion; Laurium)
      • Lavrion District Mines
        • Sounion Area
          • Agia Varvara Mines (St Barbara Mines)
No reference listed
Mineral and/or Locality  
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