Mineralogy Database

Arzrunite Mineral Data

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General Arzrunite Information

Help on Chemical  Formula: Chemical Formula: Cu4Pb2SO4(OH)4Cl6•2(H2O)
Help on Composition: Composition: Molecular Weight = 1,081.42 gm
   Copper    23.50 %  Cu   29.42 % CuO
   Hydrogen   0.75 %  H     6.66 % H2O
   Lead      38.32 %  Pb   41.28 % PbO
   Sulfur     2.97 %  S     7.40 % SO3
   Chlorine  19.67 %  Cl   19.67 % Cl
               -   %   Cl   -4.44 % -O=Cl2   
   Oxygen    14.79 %  O
            ______        ______ 
            100.00 %      100.00 % = TOTAL OXIDE
Help on Empirical Formula: Empirical Formula: Cu4Pb2(SO4)(OH)4Cl6•2(H2O)
Help on Environment: Environment: A questionable species.
Help on IMA Status: IMA Status: Valid Species (Pre-IMA) 1899
Help on Locality: Locality: Buena Esperanza mine, Challacolla, Tarapaca, Chile. Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: Named after Andreas Arzruni (1847-1898), German mineralogist, University of Aachen.

Arzrunite Crystallography

Help on Crystal System: Crystal System: Orthorhombic Space Group: Unk

Physical Properties of Arzrunite

Help on Color: Color: Blue, Bluish green.
Help on Habit: Habit: Prismatic - Crystals Shaped like Slender Prisms (e.g. tourmaline).

Optical Properties of Arzrunite

Help on Optical Data: Optical Data: Biaxial (?)
Help on Pleochroism (x): Pleochroism (x): blue.
Help on Pleochroism (y): Pleochroism (y): blue.
Help on Pleochroism (z): Pleochroism (z): nearly colorless.

Calculated Properties of Arzrunite

Help on Fermion Index: Fermion Index: Fermion Index = 0.08
Boson Index = 0.92
Help on Photoelectric: Photoelectric: PEArzrunite = 667.09 barns/electron
U=PEArzrunite x rElectron Density= . barns/cc.
Help on Radioactivity: Radioactivity: GRapi = 0 (Gamma Ray American Petroleum Institute Units)
Arzrunite is Not Radioactive

Arzrunite Classification

Help on  Dana Class: Dana Class: (12)Compound Halides
  (12.01)with miscellaneous anions
  (12.01.08)Dana Group Arzrunite Cu4Pb2SO4(OH)4Cl6•2(H2O) Unk Ortho
Help on  Strunz Class: Strunz Class: 07.DF.60 07 - SULFATES (SELENATES, TELLURATES)
  07.D - Sulfates (selenates, etc.) with additional anions, with H2O
  07.DF -With large and medium-sized cations
07.DF.60 Arzrunite Cu4Pb2SO4(OH)4Cl6•2(H2O) Unk Ortho

Other Arzrunite Information

Help on References: References: PHYS. PROP.(Enc. of Minerals,1st ed.,1974) OPTIC PROP.(Dana8)
Help on See Also: See Also: Links to other databases for Arzrunite :
1 - Am. Min. Crystal Structure Database
2 - Athena
3 - EUROmin Project
4 - Ecole des Mines de Paris
5 - GeoScienceWorld
6 - Google Images
7 - Google Scholar
8 - MinDAT
9 - Mineralienatlas (Deutsch)
10 - Online Mineral Museum
11 - QUT Mineral Atlas
12 - Ruff.Info

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Print or Cut-and-Paste your Arzrunite Specimen Label here :


Dana No: Strunz No: 07.DF.60