Help mindat.org|Log In|Register|
Home PageMindat NewsThe Mindat ManualHistory of MindatCopyright StatusManagement TeamContact UsAdvertise on Mindat
Donate to MindatSponsor a PageSponsored PagesTop Available PagesMindat AdvertisersAdvertise on MindatThe Mindat Store
Minerals by PropertiesMinerals by ChemistryRandom MineralSearch by minIDLocalities Near MeSearch GlossaryMore Search Options
Search For:
Mineral Name:
Locality Name:
Keyword(s):
 
The Mindat ManualAdd a New PhotoRate PhotosLocality Edit ReportAdd Glossary Item
StatisticsMember ListBooks & MagazinesMineral Shows & EventsThe Mindat DirectoryHow to Link to MindatDevice Settings
Photo SearchPhoto GalleriesNew Photos TodayNew Photos YesterdayMembers' Photo GalleriesPast Photo of the Day Gallery

Arhbarite

This page is currently not sponsored. Click here to sponsor this page.
Formula:
Cu2Mg(AsO4)(OH)3
System:
Triclinic
Colour:
Dark Blue to medium blue
Name:
Named by K. Schmetzer, Gerd Tremmel, and Olaf Medenbach in 1982 after the type locality, the Arhbar mine, Bou Azzer, Morocco.
This page provides mineralogical data about Arhbarite.

Classification of Arhbarite

Approved
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
42.6.5.2

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

20 : Arsenates (also arsenates with phosphate, but without other anions)
1 : Arsenates of Cu
mindat.org URL:
http://www.mindat.org/min-333.html
Please feel free to link to this page.

Type Occurrence of Arhbarite

Year of Discovery:
1982
Geological Setting of Type Material:
Hydrothermal polymetallic ore deposit

Occurrences of Arhbarite

Geological Setting:


oxidized zone of a hydrothermal polymetallic ore deposit

Physical Properties of Arhbarite

Sub-Vitreous, Waxy
Diaphaneity (Transparency):
Translucent
Colour:
Dark Blue to medium blue
Streak:
Light blue - Sky blue
Tenacity:
Brittle
Cleavage:
None Observed

Crystallography of Arhbarite

Crystal System:
Triclinic
Class (H-M):
1 - Pedial
Space Group:
P1
Space Group Setting:
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
Morphology:
Found in botryoidal clusters of tightly radially grown crystals.
X-Ray Powder Diffraction Data:
d-spacingIntensity
4.57 (100)
4.51 (90)
3.72 (60)
3.25 (40)
2.63 (40)
2.60 (50)
2.47 (50)
Comments:
ICDD 35-562

Optical Data of Arhbarite

Type:
Biaxial
RI values:
nα = 1.720 nγ = 1.740
2V:
Measured: 90°
Birefringence:
0.020
Max Birefringence:
δ = 0.020
Image shows birefringence interference colour range (at 30µm thickness) and does not take into account mineral colouration.
Surface Relief:
Moderate
Dispersion:
relatively strong
Optical Extinction:
45° to fiber axis
Pleochroism:
Visible
Comments:
X' turquoise-blue, Z' Dark turquoise-blue

Chemical Properties of Arhbarite

Formula:
Cu2Mg(AsO4)(OH)3
Essential elements:
All elements listed in formula:

Relationship of Arhbarite to other Species

8.BE.05AugeliteAl2(PO4)(OH)3
8.BE.10GrattarolaiteFe33+(PO4)O3
8.BE.15CornetiteCu3(PO4)(OH)3
8.BE.20ClinoclaseCu3(AsO4)(OH)3
8.BE.25GilmariteCu3(AsO4)(OH)3
8.BE.30AllactiteMn72+(AsO4)2(OH)8
8.BE.30FlinkiteMn22+Mn3+(AsO4)(OH)4
8.BE.30RaadeiteMg7(PO4)2(OH)8
8.BE.30ArganditeMn7(VO4)2(OH)8
8.BE.35Chlorophoenicite(Mn,Mg)3Zn2(AsO4)(OH,O)6
8.BE.35Magnesiochlorophoenicite(Mg,Mn)3Zn2(AsO4)(OH,O)6
8.BE.40Gerdtremmelite(Zn,Fe)(Al,Fe)2(AsO4)(OH)5
8.BE.45DixeniteCuMn142+Fe2+(SiO4)2(As5+O4)(As3+O3)5(OH)6
8.BE.45Hematolite(Mn,Mg,Al,Fe3+)15(As5+O4)2(As3+O3)(OH)23
8.BE.45KraissliteZn3(Mn,Mg)25(Fe3+,Al)(As3+O3)2[(Si,As5+)O4]10(OH)16
8.BE.45McgoverniteMn19Zn3(AsO4)3(AsO3)(SiO4)3(OH)21
8.BE.45Arakiite(Zn,Mn2+)(Mn2+,Mg)12(Fe3+,Al)2(As5+O4)2(As3+O3)(OH)23
8.BE.45Turtmannite(Mn,Mg)22.5Mg3-3x((V5+,As5+)O4)3(As3+O3)x(SiO4)3O5-5x(OH)20+x
8.BE.45CarlfrancisiteMn32+(Mn2+,Mg,Fe3+,Al)42[As3+O3]2(As5+O4)4[(Si,As5+)O4]6[(As5+,Si)O4]2(OH)42
8.BE.50SynadelphiteMn92+(As5+O4)2(As3+O3)(OH)9 · 2H2O
8.BE.55Holdenite(Mn2+,Mg)6Zn3(AsO4)2(SiO4)(OH)8
8.BE.60KoliciteMn72+Zn4(AsO4)2(SiO4)2(OH)8
8.BE.65Sabelliite(Cu,Zn)2Zn(AsO4,SbO4)(OH)3
8.BE.70JarosewichiteMn32+Mn3+(AsO4)(OH)6
8.BE.75TheisiteCu5Zn5(AsO4,SbO4)2(OH)14
8.BE.80CoparsiteCu4(AsO4,VO4)O2Cl
8.BE.85WaterhouseiteMn72+(PO4)2(OH)8
20.1.1LammeriteCu3(AsO4)2
20.1.2OliveniteCu2(AsO4)(OH)
20.1.3ClinoclaseCu3(AsO4)(OH)3
20.1.4CornwalliteCu5(AsO4)2(OH)4
20.1.5CornubiteCu5(AsO4)2(OH)4
20.1.6Chlorotile (of Frenzel)
20.1.7GeminiteCu(HAsO4) · H2O
20.1.8EuchroiteCu2(AsO4)(OH) · 3H2O
20.1.9StrashimiriteCu8(AsO4)4(OH)4 · 5H2O
20.1.11LindackeriteCuCu4(AsO4)2(HAsO4)2 · 8-9H2O
20.1.12ConichalciteCaCu(AsO4)(OH)
20.1.13LiroconiteCu2Al(AsO4)(OH)4 · 4H2O
20.1.14CeruleiteCu2Al7(AsO4)4(OH)13 · 11.5H2O
20.1.15ChenevixiteCu2Fe23+(AsO4)2(OH)4
20.1.16ArthuriteCuFe23+(AsO4)2(OH)2 · 4H2O

Other Names for Arhbarite

Name in Other Languages:
German:Arhbarit
Spanish:Arhbarita

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 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.

Internet Links for Arhbarite

Specimens:
The following Arhbarite specimens are currently listed for sale on minfind.com.

Localities for Arhbarite

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
 
  • 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 (TL)
 
  • Souss-Massa-Draâ Region
    • Ouarzazate Province
      • Tazenakht
        • Bou Azer District (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  
Mindat.org is an outreach project of the Hudson Institute of Mineralogy, a 501(c)(3) not-for-profit organization.
Copyright © mindat.org and the Hudson Institute of Mineralogy 1993-2015, except where stated. Mindat.org relies on the contributions of thousands of members and supporters.
Privacy Policy - Terms & Conditions - Contact Us Current server date and time: August 30, 2015 09:00:29 Page generated: August 23, 2015 12:54:16