Arzrunite Mineral Data

Arzrunite Mineral Data

General Arzrunite Information

Chemical Formula:

Cu4Pb2SO4(OH)4Cl6·2(H2O)

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

Empirical Formula:

Cu₄Pb₂(SO₄)(OH)₄Cl₆·2(H₂O)

Environment:

A questionable species.

IMA Status:

Valid Species (Pre-IMA) 1899

Locality:

Buena Esperanza mine, Challacolla, Tarapaca, Chile. Link to MinDat.org Location Data.

Name Origin:

Named after Andreas Arzruni (1847-1898), German mineralogist, University of Aachen.

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Arzrunite Crystallography

Crystal System:

OrthorhombicSpace Group: Unk

Physical Properties of Arzrunite

Color:

Blue, Bluish green.

Habit:

Prismatic - Crystals Shaped like Slender Prisms (e.g. tourmaline).

Optical Properties of Arzrunite

Optical Data:

Biaxial (?)

Pleochroism (x):

blue.

Pleochroism (y):

blue.

Pleochroism (z):

nearly colorless.

Calculated Properties of Arzrunite

Fermion Index

Fermion Index = 0.08498
Boson Index = 0.91502

Photoelectric:

PE_Arzrunite= 667.09 barns/electron
U=PE_Arzrunite x r_electron= . barns/cc.

Radioactivity:

GRapi = 0 (Gamma Ray American Petroleum Institute Units)

Arzrunite is Not Radioactive

Arzrunite Classification

Dana Class:

12.1.8.1 (12)Compound Halides

(12.1)with miscellaneous anions

(12.1.8)Dana Group

12.1.8.1 Arzrunite Cu4Pb2SO4(OH)4Cl6·2(H2O) Unk Ortho

Strunz Class:

VI/D.19-35 VI - Sulfates,Chromates,Molybdates and Tungstates

VI/D - Water-bearing sulfates with unfamiliar anions. Cations of medium and very big size

VI/D.19 - Devilline - Serperite - Rapidcreekite series

VI/D.19-05 Niedermayrite! Cu4Cd(SO4)2(OH)6·4(H2O) P 2₁/m 2/m

VI/D.19-10 Devilline CaCu4(SO4)2(OH)6·3(H2O) P 2₁/c 2/m

VI/D.19-20 Serpierite Ca(Cu,Zn)4(SO4)2(OH)6·3(H2O) C 2/c 2/m

VI/D.19-30 Orthoserpierite Ca(Cu,Zn)4(SO4)2(OH)6·3(H2O) P ca2₁ mm2

VI/D.19-32 Lautenthalite PbCu4(OH)6(SO4)2·3(H2O) P 2₁/c 2/m

VI/D.19-35 Arzrunite Cu4Pb2SO4(OH)4Cl6·2(H2O) Unk Ortho

VI/D.19-40 Tatarskite Ca6Mg2(SO4)2(CO3)2Cl4(OH)4·7(H2O) Unk Ortho

VI/D.19-50 Tanteuxenite-(Y) (Y,Ce,Ca)(Ta,Nb,Ti)2(O,OH)6 Pcan 2/m 2/m 2/m

Other Arzrunite Information

References:

PHYS. PROP.(Enc. of Minerals,1st ed.,1974) OPTIC PROP.(Dana8)

See Also:

Links to other databases for Arzrunite :
1 -Am. Min. Crystal Structure Database 2 -Athena 3 - EUROmin Project 4 -Google Images 5 -Google Scholar 6 -MinDAT 7 -MinMax(Deutsch) 8 -MinMax(English) 9 -Mineralienatlas (Deutsch) 10 -QUT Mineral Atlas 11 -École des Mines de Paris

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

Arzrunite

Cu4Pb2SO4(OH)4Cl6·2(H2O)
Dana No: 12.1.8.1 Strunz No: VI/D.19-35
Locality:

Notes: