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Cobaltkoritnigite

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Schneeberg District, Erzgebirge, Saxony, Germany
© Thomas Witzke

Show Cobaltkoritnigite Photos (14)
Formula:
(Co,Zn)[HAsO
 
4
] · H
 
2
O
System:TriclinicColour:Purple
Lustre:VitreousHardness:2 - 3
This page provides mineralogical data about Cobaltkoritnigite.

Classification of Cobaltkoritnigite

IMA status:Approved 1980
Strunz 8th edition ID:7/C.06-10
Nickel-Strunz 10th (pending) edition ID:8.CB.20

8 : PHOSPHATES, ARSENATES, VANADATES
C : Phosphates without additional anions, with H2O
B : With only medium-sized cations, RO4:H2O = 1:1
Dana 8th edition ID:39.1.4.2

39 : HYDRATED ACID PHOSPHATES,ARSENATES AND VANADATES
1 : A[HXO4]·xH2O
Hey's CIM Ref.:20.10.6

20 : Arsenates (also arsenates with phosphate, but without other anions)
10 : Arsenates of Co and Ni
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Type Occurrence of Cobaltkoritnigite

Type Locality:Schwarzenberg District, Erzgebirge, Saxony, Germany
Year of Discovery:1981

Physical Properties of Cobaltkoritnigite

Lustre:Vitreous
Colour:Purple
Hardness (Mohs):2 - 3

Crystallography of Cobaltkoritnigite

Crystal System:Triclinic

Optical Data of Cobaltkoritnigite

Type:Biaxial (+)
RI values: nα = 1.646 nβ = 1.668 nγ = 1.705
2V:Measured: 78° , Calculated: 78°
Maximum Birefringence:δ = 0.059

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

Chemical Properties of Cobaltkoritnigite

Formula:
(Co,Zn)[HAsO
 
4
] · H
 
2
O
Essential elements:As, Co, H, O
All elements listed in formula:As, Co, H, O, Zn

Relationship of Cobaltkoritnigite to other Species

Related Minerals - Nickel-Strunz Grouping):
8.CB.05Serrabrancaite
MnPO
 
4
·H
 
2
O
8.CB.10Hureaulite
(Mn,Fe)
 
5
H
 
2
(PO
 
4
)
 
4
·4H
 
2
O
8.CB.10Irhtemite
Ca
 
4
Mg[(HAsO
 
4
)
 
2
|(AsO
 
4
)
 
2
] · 4H
 
2
O
8.CB.10Sainfeldite
Ca
 
5
H
 
2
(AsO
 
4
)
 
4
·4H
 
2
O
8.CB.10Villyaellenite
(Mn,Ca,Zn)
 
5
(AsO
 
4
)
 
2
[AsO
 
3
(OH)]
 
2
·4H
 
2
O
8.CB.15Fluckite
CaMnH
 
2
(AsO
 
4
)
 
2
·2H
 
2
O
8.CB.15Krautite
MnHAsO
 
4
·H
 
2
O
8.CB.20Koritnigite
Zn[HAsO
 
4
] · H
 
2
O
8.CB.25Yvonite
Cu[HAsO
 
4
] · 2H
 
2
O
8.CB.30Geminite
Cu
 
2
[As
 
2
O
 
7
] · 3H
 
2
O
8.CB.35Schubnelite
Fe
 
2-x
V
 
2
O
 
4
(OH)
 
4
8.CB.40Radovanite
Cu
 
2
Fe
3+
 
[(As
3+
 
O
 
2
(OH)]
 
2
[As
5+
 
O
 
4
]·H
 
2
O
8.CB.45Kazakhstanite
Fe
 
5
V
 
3
V
 
12
O
 
39
(OH)
 
9
·9H
 
2
O
8.CB.50Kolovratite
(Zn,Ni,Cu)
 
2-5
Al
 
4-6
(Si,V
4+
 
,V
5+
 
)
 
4
(O,OH)
 
20
·7.5H
 
2
O
Related Minerals - Hey's Index Grouping:
20.10.1Erythrite
Co
 
3
(AsO
 
4
)
 
2
·8H
 
2
O
20.10.2Cobaltaustinite
CaCo[OH|AsO
 
4
]
20.10.3Roselite
Ca
 
2
(Co
2+
 
,Mg)[AsO
 
4
]
 
2
 · 2H
 
2
O
20.10.4β-Roselite
Ca
 
2
(Co
2+
 
,Mg)[AsO
 
4
]
 
2
 · 2H
 
2
O
20.10.5Wendwilsonite
Ca
 
2
(Mg,Co
2+
 
)[AsO
 
4
]
 
2
 · 2H
 
2
O
20.10.7Aerugite
Ni
 
8.5
(AsO
 
4
)
 
3
As
5+
 
O
 
8
20.10.8Xanthiosite
Ni
 
3
[AsO
 
4
]
 
2
20.10.9Annabergite
Ni
 
3
(AsO
 
4
)
 
2
·8H
 
2
O
20.10.10Smolianinovite
(Co,Ni,Mg,Ca)
 
3
(Fe
3+
 
,Al)
 
2
(AsO
 
4
)
 
4
·11H
 
2
O
20.10.11Nickelaustinite
Ca(Ni,Zn)[OH|AsO
 
4
]

Other Names for Cobaltkoritnigite

Synonyms:
IMA1980-013
German names:
CobaltkoritnigitKobaltkoritnigit
Spanish names:
Cobaltkoritnigita

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 Cobaltkoritnigite

Reference List:Schmetzer, K., W. Horn & O. Medenbach (1981): Über Kobaltkoritnigit, (Co,Zn)[H2O/ AsO3OH], ein neues Mineral und Pitticit, Fe2O3 · As2O5 · 9-10 H2O, ein röntgenamorphes Fe-Arsenat-Hydrat.- Neues Jahrbuch für Mineralogie, Monatshefte, 257-266.

American Mineralogist: 67: 414.

Internet Links for Cobaltkoritnigite

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  • Raman and XRD data at RRUFF project
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    Localities for Cobaltkoritnigite

    Hide Locality List
    The 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.
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    (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.
    Czech Republic
     
    • Bohemia (Böhmen; Boehmen)
      • Karlovy Vary Region
        • Krušné Hory Mts (Erzgebirge)
          • Ostrov
    		Lapis 2002(7/8), 63-65
        • Mariánské Lázně (Marienbad)
          • Slavkovský Les Mts
    		M.E. Ciriotti, 2006, probed EDX+XRD by S. Möckel
    Germany
     
    • Baden-Württemberg
      • Black Forest
        • Alpirsbach
    		K. Walenta: "Die Mineralien des Schwarzwaldes", Weise (Munich), 1992
        • Schenkenzell
          • Wittichen
            • Böckelsbach valley
    		collection Joachim Esche
    Walenta: "Die Mineralien des Schwarzwaldes", Weise (Munich), 1992
            • Burgfelsen
    		No reference listed
            • Heubach Valley
    		No reference listed
    http://wittichen.strahlen.org/ ; Collection Elamr Lackner and many others
        • Wolfach
          • Oberwolfach
            • Rankach valley
    		U. Kolitsch, J. Gröbner, G. Blaß, H.-W. Graf und A. Pring (2005): Neufunde aus der Grube Clara im mittleren Schwarzwald (II): Dreyerit, Gasparit-(Ce), Klinobisvanit, Kobaltkoritnigit, Metatyuyamunit, Roscoelith, Sengierit, Vésigniéit und Wakefieldit. Lapis 30 (9), 35-39; 58. (in German)
    • Hesse
      • North Hesse
        • Richelsdorf District
          • Bauhaus
    		No reference listed
          • Süss
            • Richelsdorf Smelter
    		S. Weiß: "Mineralfundstellen, Deutschland West", Weise (Munich), 1992
      • Odenwald
        • Wald-Michelbach
          • Mackenheim
    • Lower Saxony
      • Harz Mts
        • Braunlage
    		Weiss: "Mineralfundstellen, Deutschland West", Weise (Munich), 1990
    • Rhineland-Palatinate
      • Siegerland
        • Niederfischbach
    		Weiss: "Mineralfundstellen, Deutschland West", 1990
    • Saxony
      • Erzgebirge
    		Wittern: "Mineralfundorte in Deutschland", 2001
        • Schneeberg District
          • Neustädtel
    		Lapis 30(7/8):41-70 (2005)
    Lapis 30(7/8):41-70 (2005)
    Lapis 30(7/8):41-70 (2005)
    [Schmetzer et al: N. Jb. Miner. Mh. 1981, 257-266]
    Japan
     
    • Honshu Island
      • Kanto region
        • Tochigi Prefecture
          • Ashio
    		Okada et al (1994) Abstracts, IMA General Meeting, 1994, 307-308.
    Morocco
     
    • Souss-Massa-Draâ Region
      • Ouarzazate Province
        • Tazenakht
          • Bou Azzer District
            • Aghbar
    		Favreau, G. and Dietrich, J. E. (2006). Die Mineralien von Bou Azzer. Lapis 31(7/8), 27-68
            • Aït Ahmane
    		Favreau, G. and Dietrich, J. E. (2006). Die Mineralien von Bou Azzer. Lapis 31(7/8), 27-68
            • Bou Azzer
    		Favreau, G. and Dietrich, J. E. (2006). Die Mineralien von Bou Azzer. Lapis 31(7/8), 27-68
            • Tamdrost
    		Favreau, G. and Dietrich, J. E. (2006). Die Mineralien von Bou Azzer. Lapis 31(7/8), 27-68
    Mineral and/or Locality
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