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Arhbarite

Big Photo

Emma Luisa Mine, Guanaco (Huanaco), Santa Catalina, Antofagasta Province, Antofagasta Region, Chile
© Brent Thorne

Show Arhbarite Photos (15)
Formula:
Cu
 
2
Mg[(OH)
 
3
|AsO
 
4
]
System:TriclinicColour:Blue
Name:Named after Arhbar mine, Bou Azzer, Morocco (type locality)
This page provides mineralogical data about Arhbarite.

Classification of Arhbarite

IMA status:Approved
Strunz 8th edition ID:7/B.13-40
Nickel-Strunz 10th (pending) edition ID:8.BE.25

8 : PHOSPHATES, ARSENATES, VANADATES
B : Phosphates, etc., with additional anions, without H2O
E : With only medium-sized cations, (OH, etc.):RO4 > 2:1
Dana 8th edition ID:42.6.5.2

42 : HYDRATED PHOSPHATES, ETC.CONTAINING HYDROXYL OR HALOGEN
6 : A2(XO4)Zq·xH2O
Hey's CIM Ref.:20.1.10

20 : Arsenates (also arsenates with phosphate, but without other anions)
1 : Arsenates of Cu
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Type Occurrence of Arhbarite

Type Locality:Aghbar Mine (Arhbar Mine), Aghbar, Bou Azzer District, Tazenakht, Ouarzazate Province, Souss-Massa-Draâ Region, Morocco
Year of Discovery:1982

Physical Properties of Arhbarite

Colour:Blue

Crystallography of Arhbarite

Crystal System:Triclinic
Class (H-M):1 - Pedial
Space Group:P1
Cell Parameters:a = 5.315Å, b = 5.978Å, c = 5.03Å
α = 113.58°, β = 97.14°, γ = 89.31°
Ratio:a:b:c = 0.889 : 1 : 0.841
Unit Cell Volume:V 145.21 ų (Calculated from Unit Cell)

Optical Data of Arhbarite

Type:Biaxial
RI values: nα = 1.720 nγ = 1.740
2V:Measured: 90°
Maximum Birefringence:δ = 0.020

Chart shows birefringence interference colour range (at 30µm thickness) and does not take into account mineral colouration.
Surface Relief:Moderate
Dispersion:relatively strong

Chemical Properties of Arhbarite

Formula:
Cu
 
2
Mg[(OH)
 
3
|AsO
 
4
]
Essential elements:As, Cu, H, O
All elements listed in formula:As, Cu, H, Mg, O

Relationship of Arhbarite to other Species

Related Minerals - Nickel-Strunz Grouping):

- +
8.BE.05Augelite
Al
 
2
[(OH)
 
3
|PO
 
4
]
8.BE.10Grattarolaite
Fe
3+
 
[O
 
3
|PO
 
4
]
8.BE.15Cornetite
Cu
 
3
[(OH)
 
3
|PO
 
4
]
8.BE.20Clinoclase
Cu
 
3
[(OH)
 
3
|AsO
 
4
]
8.BE.25Gilmarite
Cu
 
3
[(OH)
 
3
|AsO
 
4
]
8.BE.30Allactite
Mn
2+
7
(AsO
 
4
)
 
2
(OH)
 
8
8.BE.30Flinkite
Mn
2+
2
Mn
3+
 
AsO
 
4
(OH)
 
4
8.BE.30Raadeite
Mg
 
7
(PO
 
4
)
 
2
(OH)
 
8
8.BE.35Chlorophoenicite
(Mn,Mg)
 
3
Zn
 
2
(AsO
 
4
)(OH,O)
 
6
8.BE.35Magnesiochlorophoenicite
(Mg,Mn)
 
3
Zn
 
2
(AsO
 
4
)(OH,O)
 
6
8.BE.40Gerdtremmelite
(Zn,Fe)(Al,Fe)
 
2
AsO
 
4
(OH)
 
5
8.BE.45Dixenite
CuMn
2+
14
Fe
2+
 
[(OH)
 
6
|(AsO
 
3
)
 
5
|AsO
 
4
|(SiO
 
4
)
 
2
]
8.BE.45Hematolite
(Mn,Mg,Al)
 
15
(AsO
 
3
)(AsO
 
4
)
 
2
(OH)
 
23
8.BE.45Kraisslite
(Mn
2+
 
,Mg)
 
24
Zn
 
4
[(OH)
 
12
|(AsO
 
4
)
 
4
|(SiO
 
4
)
 
8
]
8.BE.45Mcgovernite
(Mn,Mg,Zn)
 
273
As
3+
~12
As
5+
~30
Si
 
~42
O
 
324
(OH)
 
252
8.BE.45Arakiite
(Zn,Mn
2+
 
)(Mn
2+
 
,Mg)
 
12
(Fe
3+
 
,Al)
 
2
(AsO
 
3
)(AsO
 
4
)
 
2
(OH)
 
23
8.BE.45Turtmannite
(Mn,Mg)
 
22.5
Mg
 
3-3x
[(V,As)O
 
4
]
 
3
[SiO
 
4
]
 
3
[AsO
 
3
]
 
x
O
 
5-5x
(OH)
 
20+x
8.BE.50Synadelphite
Mn
2+
9
[(OH)
 
9
|As
3+
 
O
 
3
|(As
5+
 
O
 
4
)
 
2
] · 2H
 
2
O
8.BE.55Holdenite
(Mn
2+
 
,Mg)
 
6
Zn
 
3
[(OH)
 
8
|(AsO
 
4
)
 
2
|SiO
 
4
]
8.BE.60Kolicite
Mn
2+
7
Zn
 
4
[(OH)
 
8
|(AsO
 
4
)
 
2
|(SiO
 
4
)
 
2
]
8.BE.65Sabelliite
(Cu,Zn)
 
2
Zn[(OH)
 
3
|(AsO
 
4
,SbO
 
4
)]
8.BE.70Jarosewichite
Mn
 
3
MnAsO
 
4
(OH)
 
6
8.BE.75Theisite
Cu
 
5
Zn
 
5
[(OH)
 
7
|(AsO
 
4
,SbO
 
4
)]
 
2
8.BE.80Coparsite
Cu
 
4
[O
 
2
|Cl|(AsO
 
4
,VO
 
4
)]
8.BE.85Waterhouseite
Mn
2+
7
[(OH)
 
8
|(PO
 
4
)
 
2
]
Related Minerals - Hey's Index Grouping:

- +
20.1.1Lammerite
Cu
 
3
[AsO
 
4
]
 
2
20.1.2Olivenite
Cu
 
2
[OH|AsO
 
4
]
20.1.3Clinoclase
Cu
 
3
[(OH)
 
3
|AsO
 
4
]
20.1.4Cornwallite
Cu
 
5
[(OH)
 
2
|AsO
 
4
]
 
2
20.1.5Cornubite
Cu
 
5
[(OH)
 
2
|AsO
 
4
]
 
2
20.1.6Chlorotile (of Frenzel)
20.1.7Geminite
Cu
 
2
[As
 
2
O
 
7
] · 3H
 
2
O
20.1.8Euchroite
Cu
 
2
[OH|AsO
 
4
] · 3H
 
2
O
20.1.9Strashimirite
Cu
 
8
[OH|AsO
 
4
]
 
4
 · 5H
 
2
O
20.1.11Lindackerite
CuCu
 
4
[HAsO
 
4
|AsO
 
4
]
 
2
 · 8-9H
 
2
O
20.1.12Conichalcite
CaCu[OH|AsO
 
4
]
20.1.13Liroconite
Cu
 
2
Al[(OH)
 
4
|AsO
 
4
] · 4H
 
2
O
20.1.14Ceruleite
Cu
 
2
Al
 
7
[(OH)
 
13
|(AsO
 
4
)
 
4
] · 11.5H
 
2
O
20.1.15Chenevixite
Cu
 
2
Fe
3+
2
[(OH)
 
2
|AsO
 
4
]
 
2
20.1.16Arthurite
CuFe
3+
2
[(OH,O)|(AsO
 
4
,PO
 
4
,SO
 
4
)]
 
2
 · 4H
 
2
O

Other Names for Arhbarite

Other Languages:
German:Arhbarit
Spanish:Arhbarita

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 Arhbarite

Reference List:Schmetzer, K., Tremmel, G. and Medenbach, O. (1982): Arhbarit, Cu2[OH|AsO4]•6H2O, ein neues Mineral von Bou-Azzer, Marokko. Neues Jahrbuch für Mineralogie, Monatshefte: 1982, 529-533.

Krause, W., H.-J. Bernhardt, H. Effenberger, U. Kolitsch and C. Lengauer (2003): Redefinition of arhbarite, Cu2Mg(AsO4)(OH)3. Mineralogical Magazine: 67, 1099-1107.

American Mineralogist: 68: 1038.

Articles/Blogs about Arhbarite

Internet Links for Arhbarite

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    Localities for Arhbarite

    (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
     
    • Antofagasta Region
      • Antofagasta Province
        • Santa Catalina
    Färber, G., Witzke, T., Neumeier, G. and Weiß, S. (1998): Die besten Stufen des seltenen Kupferarsenates Arhbarit – ein sensationeller Neufund aus Chile. Lapis 23 (10), 49-51 (in German) ; W. Krause, H.-J. Bernhardt, H. Effenberger, U. Kolitsch and C. Lengauer (2003): Redefinition of arhbarite, Cu2Mg(AsO4)(OH)3. Mineral. Mag. 67, 1099-1107
    No reference listed
    Morocco
     
    • Souss-Massa-Draâ Region
      • Ouarzazate Province
        • Tazenakht
          • Bou Azzer District
            • Aghbar
    		Schmetzer, K., Tremmel, G. and Medenbach, O. (1982): Arhbarit, Cu2[OH|AsO4]•6H2O, ein neues Mineral von Bou-Azzer, Marokko. Neues Jahrbuch für Mineralogie, Monatshefte 1982, 529-533; Krause, W., H.-J. Bernhardt, H. Effenberger, U. Kolitsch and C. Lengauer (2003): Redefinition of arhbarite, Cu2Mg(AsO4)(OH)3. Mineralogical Magazine: 67, 1099-1107.
    Mineral and/or Locality
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