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Arzrunite

Formula:
near Cu
 
4
Pb
 
2
SO
 
4
Cl
 
6
(OH)
 
4
·2H
 
2
O
System:OrthorhombicColour:Blue, blue-green
Name:After Andreas 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

IMA status:Questionable/Doubtful
Strunz 8th edition ID:6/D.19-35
Nickel-Strunz 10th (pending) edition ID: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
Dana 8th edition ID:12.1.8.1

12 : COMPOUND HALIDES
1 : Miscellaneous
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Physical Properties of Arzrunite

Colour:Blue, blue-green

Crystallography of Arzrunite

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

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:
near Cu
 
4
Pb
 
2
SO
 
4
Cl
 
6
(OH)
 
4
·2H
 
2
O
Essential elements:Cl, Cu, H, O, Pb, S
All elements listed in formula:Cl, Cu, H, O, Pb, S

Relationship of Arzrunite to other Species

Related Minerals - Nickel-Strunz Grouping):

- +
7.DF.05Uklonskovite
NaMg[F|SO
 
4
] · 2H
 
2
O
7.DF.10Kainite
KMg[Cl|SO
 
4
] · 3H
 
2
O
7.DF.15Natrochalcite
NaCu
 
2
[OH|(SO
 
4
)
 
2
] · 2H
 
2
O
7.DF.20Metasideronatrite
Na
 
4
Fe
 
2
(SO
 
4
)
 
4
(OH)
 
2
·2H
 
2
O
7.DF.20Sideronatrite
Na
 
2
Fe(SO
 
4
)
 
2
OH·3H
 
2
O
7.DF.25Despujolsite
Ca
 
3
Mn
4+
 
[(OH)
 
6
|(SO
 
4
)
 
2
] · 3H
 
2
O
7.DF.25Fleischerite
Pb
 
3
Ge[(OH)
 
6
|(SO
 
4
)
 
2
] · 3H
 
2
O
7.DF.25Schaurteite
Ca
 
3
Ge[(OH)
 
6
|(SO
 
4
)
 
2
] · 4H
 
2
O
7.DF.25Mallestigite
Pb
 
3
Sb
5+
 
[(OH)
 
6
|AsO
 
4
|SO
 
4
] · 3H
 
2
O
7.DF.30Slavíkite
(H
 
3
O
+
 
)
 
3
Mg
 
6
Fe
 
15
(SO
 
4
)
 
21
(OH)
 
18
·99H
 
2
O
7.DF.35Metavoltine
Na
 
6
K
 
2
FeFe
 
6
(SO
 
4
)
 
12
O
 
2
·18H
 
2
O
7.DF.40Lannonite
HCa
 
4
Mg
 
2
Al
 
4
(SO
 
4
)
 
8
F
 
9
·32H
 
2
O
7.DF.40Vlodavetsite
AlCa
 
2
[F
 
2
|Cl|(SO
 
4
)
 
2
] · 4H
 
2
O
7.DF.45Peretaite
Ca(SbO)
 
4
[(OH)|SO
 
4
]
 
2
 · 2H
 
2
O
7.DF.50Gordaite
NaZn
 
4
[(OH)
 
6
|SO
 
4
|Cl] · 6H
 
2
O
7.DF.55Clairite
(NH
 
4
)
 
2
Fe
 
3
(SO
 
4
)
 
4
(OH)
 
3
·3H
 
2
O
7.DF.65Elyite
Pb
 
4
Cu(SO
 
4
)O
 
2
(OH)
 
4
·H
 
2
O
7.DF.70Yecoraite
Fe
3+
3
(BiO)
 
5
(Te
4+
 
O
 
3
)(Te
6+
 
O
 
6
)
 
2
 · 9H
 
2
O
7.DF.75Riomarinaite
Bi(OH)(SO
 
4
) * H
 
2
O
7.DF.80Dukeite
Bi
 
24
Cr
6+
8
O
 
57
(OH)
 
6
(H
 
2
O)
 
3
7.DF.85Xocolatlite
Ca
 
2
Mn
4+
2
Te
6+
2
O
 
12
·H
 
2
O

Other Names for Arzrunite

Other Languages:
German:Arzrunit
Spanish:Arzrunita

Other Information

Health Warning: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:Arzrni and Thaddéeff (1899) Zeitschrift für Kristallographie, Mineralogie und Petrographie, Leipzig: 31: 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: 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

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    Localities for Arzrunite

    (TL) indicates type locality. ? 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
      • Iquique 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 (Attica; Attika) Prefecture
      • Lavrion (Laurion; Laurium) District
        • Lavrion District Mines
          • Sounion Area
            • Agia Varvara Mines (St Barbara Mines)
    		No reference listed
    Mineral and/or Locality
    Google
     
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