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Koritnigite

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Tsumeb Mine (Tsumcorp Mine), Tsumeb, Otjikoto (Oshikoto) Region, Namibia
© Brent Thorne

Show Koritnigite Photos (3)



Formula:
Zn(HAsO
 
4
) · H
 
2
O
System:TriclinicColour:Colorless to white
Hardness:2
Name:Named by P. Keller, P. Suesse, G. Schnorer, and P. Dunn, in honor of Professor Sigmund Koritnig [December 12, 1912 Graz, Austria – March 26, 1994 Göttingen, Germany), petrologist, University of Göttingen, Göttingen, Germany.
This page provides mineralogical data about Koritnigite.

Classification of Koritnigite

IMA status:Approved 1978
Strunz 8th edition ID:7/C.06-20
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:39.1.4.1

39 : HYDRATED ACID PHOSPHATES,ARSENATES AND VANADATES
1 : A[HXO4]·xH2O
Hey's CIM Ref.:20.3.3

20 : Arsenates (also arsenates with phosphate, but without other anions)
3 : Arsenates of Zn, Cd or Hg
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Type Occurrence of Koritnigite

Type Locality:Tsumeb Mine (Tsumcorp Mine), Tsumeb, Otjikoto (Oshikoto) Region, Namibia
General Appearance of Type Material:Oxidized zone of a polymetallic ore body.
Year of Discovery:1979
Associated Minerals at type locality:
TennantiteStranskiiteCuprian Adamite

Physical Properties of Koritnigite

Lustre:Vitreous, Sub-Vitreous
Diaphaneity (Transparency):Transparent
Colour:Colorless to white
Streak:White
Hardness (Mohs):2
Tenacity:Flexible
Cleavage:Perfect
{010} perfect; shows traces || [001] and [100]
Density (measured):3.54 g/cm3
Density (calculated):3.56 g/cm3

Crystallography of Koritnigite

Crystal System:Triclinic
Class (H-M):1 - Pinacoidal
Space Group:P1
Space Group Setting:P1
Cell Parameters:a = 7.948Å, b = 15.829Å, c = 6.668Å
α = 90.86°, β = 96.56°, γ = 90.05°
Ratio:a:b:c = 0.502 : 1 : 0.421
Unit Cell Volume:V 833.30 ų (Calculated from Unit Cell)
Z:8
Morphology:Wide bladed to acicular.
Comment:Neues Jahrbuch MA 138:316 (1980) structure.
X-Ray Powder Diffraction:
d-spacingIntensity
7.9 (100)
3.95 (40)
3.83 (70)
3.16 (90)
2.93 (40)
2.68 (40)
2.46 (60)
2.19 (50)
Comments:ICDD 34-1396

Optical Data of Koritnigite

Type:Biaxial (+)
RI values: nα = 1.632 nβ = 1.652 nγ = 1.693
2V:Measured: 70° , Calculated: 72°
Birefringence:0.061
Maximum Birefringence:δ = 0.061

Chart shows birefringence interference colour range (at 30µm thickness) and does not take into account mineral colouration.
Surface Relief:Moderate
Dispersion:weak to distinct
Optical Extinction:Z ^ c = 22°; X=b
Pleochroism:Non-pleochroic

Chemical Properties of Koritnigite

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

Relationship of Koritnigite to other Species

Related Minerals - Nickel-Strunz Grouping):

- +
8.CB.05Serrabrancaite
MnPO
 
4
 · H
 
2
O
8.CB.10Hureaulite
(Mn,Fe)
 
5
(PO
 
4
)
 
2
(HPO
 
4
)
 
2
 · 4H
 
2
O
8.CB.10Sainfeldite
CaCa
 
2
Ca
 
2
(AsO
 
4
)
 
2
(HAsO
 
4
)
 
2
 · 4H
 
2
O
8.CB.10Villyaellenite
MnMn
 
2
Ca
 
2
(AsO
 
4
)
 
2
(HAsO
 
4
)
 
2
 · 4H
 
2
O
8.CB.10UM1997-09-AsO:CaHMgZn
(Mg,Ca,Zn)
 
5
(AsO
 
4
)
 
2
(HAsO
 
4
)
 
2
 · 4H
 
2
O
8.CB.10Nyholmite
Cd
 
3
Zn
 
2
(AsO
 
4
)
 
2
(HAsO
 
4
)
 
2
 · 4H
 
2
O
8.CB.10Miguelromeroite
MnMn
 
2
Mn
 
2
(AsO
 
4
)
 
2
(HAsO
 
4
)
 
2
 · 4H
 
2
O
8.CB.15Fluckite
CaMn
2+
 
(HAsO
 
4
)
 
2
 · 2H
 
2
O
8.CB.15Krautite
Mn(HAsO
 
4
) · H
 
2
O
8.CB.20Cobaltkoritnigite
(Co,Zn)(HAsO
 
4
) · H
 
2
O
8.CB.25Yvonite
Cu(HAsO
 
4
) · 2H
 
2
O
8.CB.30Geminite
Cu(HAsO
 
4
) · H
 
2
O
8.CB.35Schubnelite
Fe
3+
 
VO
 
4
 · H
 
2
O
8.CB.40Radovanite
Cu
 
2
Fe
3+
 
(AsO
 
4
)(HAs
3+
 
O
 
3
)
 
2
 · H
 
2
O
8.CB.45Kazakhstanite
Fe
3+
5
V
4+
3
V
5+
12
O
 
39
(OH)
 
9
 · 9H
 
2
O
8.CB.50Kolovratite
Ni
 
x
Zn
 
y
(VO
 
4
)
 
0.67(x+y)
 · nH
 
2
O
8.CB.55Irhtemite
Ca
 
4
Mg(AsO
 
4
)
 
2
(HAsO
 
4
)
 
2
 · 4H
 
2
O
8.CB.60Burgessite
Co
 
2
(HAsO
 
4
)
 
2
 · 5H
 
2
O
Related Minerals - Hey's Index Grouping:

- +
20.3.1Adamite
Zn
 
2
(AsO
 
4
)(OH)
20.3.2Paradamite
Zn
 
2
(AsO
 
4
)(OH)
20.3.4Legrandite
Zn
 
2
(AsO
 
4
)(OH) · H
 
2
O
20.3.5Warikahnite
Zn
 
3
(AsO
 
4
)
 
2
 · 2H
 
2
O
20.3.6Köttigite
Zn
 
3
(AsO
 
4
)
 
2
 · 8H
 
2
O
20.3.7Stranskiite
(Zn,Cu)
 
3
(AsO
 
4
)
 
2
20.3.8Philipsburgite
(Cu,Zn)
 
6
(AsO
 
4
,PO
 
4
)
 
2
(OH)
 
6
 · H
 
2
O
20.3.9Austinite
CaZn(AsO
 
4
)(OH)
20.3.10Prosperite
CaZn
 
2
(AsO
 
4
)(HAsO
 
4
)(OH)
20.3.11Gaitite
Ca
 
2
Zn(AsO
 
4
)
 
2
 · 2H
 
2
O
20.3.12Zincroselite
Ca
 
2
Zn(AsO
 
4
)
 
2
 · 2H
 
2
O
20.3.13O'Danielite
Na(Zn,Mg)
 
3
H
 
2
(AsO
 
4
)
 
3
20.3.14Johillerite
Na(Mg,Zn)
 
3
Cu(AsO
 
4
)
 
3
20.3.15Holdenite
(Mn
2+
 
,Mg)
 
6
Zn
 
3
(AsO
 
4
)
 
2
(SiO
 
4
)(OH)
 
8
20.3.16Chudobaite
(Mg,Zn)
 
5
(AsO
 
4
)
 
2
(HAsO
 
4
)
 
2
 · 10H
 
2
O
20.3.17Chlorophoenicite
(Mn,Mg)
 
3
Zn
 
2
(AsO
 
4
)(OH,O)
 
6
20.3.18Lotharmeyerite
Ca(Zn,Mn
3+
 
)
 
2
(AsO
 
4
)
 
2
 · 2(H
 
2
O,OH)
20.3.19Metaköttigite
(Zn,Fe,Fe)
 
3
(AsO
 
4
)
 
2
 · 8(H
 
2
O,OH)
20.3.20Ojuelaite
ZnFe
3+
2
(AsO
 
4
)
 
2
(OH)
 
2
 · 4H
 
2
O
20.3.21Fahleite
Zn
 
5
CaFe
 
2
(AsO
 
4
)
 
6
 · 14H
 
2
O
20.3.22Keyite
Cu
2+
3
Zn
 
4
Cd
 
2
(AsO
 
4
)
 
6
 · 2H
 
2
O

Other Names for Koritnigite

Synonyms:
IMA1978-008
Other Languages:
German:Koritnigit
Russian:Коритнигит
Spanish:Koritnigita

Other Information

Fluorescence in UV light:Not fluorescent.
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 Koritnigite

Reference List:

- +
TMPM 26: 51 (1979).
American Mineralogist (1980): 65: 206.

Neues Jahrbuch für Mineralogie, Abhandlungen: 138: 316-332. structure.
Aufschluss (1980): 31:43.
Aufschluss (1983): 34: 5-8.

Internet Links for Koritnigite

Search Engines:
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  • Raman and XRD data at RRUFF project
  • American Mineralogist Crystal Structure Database
  • Koritnigite details from Handbook of Mineralogy (PDF)
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    • Localities for Koritnigite

    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.
    Hide Locality List
    (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)
          • Jáchymov (St Joachimsthal) District
            • Jáchymov (St Joachimsthal)
    		Lapis 2002(7/8)
    Germany
     
    • Hesse
      • Richelsdorf District
        • Süss
          • Richelsdorf Smelter
    		S. Weiß: "Mineralfundstellen, Deutschland West", Weise (Munich), 1992
    • Rhineland-Palatinate
      • Lahn valley
    		Wittern: "Mineralfundorte in Deutschland", 2001
          • Frücht
    		Der Aufschluss Vol.55, March/April 2004
    Greece
     
    • Attikí (Attica; Attika) Prefecture
      • Lavrion (Laurion; Laurium) District
        • Lavrion District Mines
          • Agios Konstantinos [St Constantine] (Kamariza)
            • Kamariza Mines (Kamareza Mines)
    		No reference listed
    Lapis No.7/8 1999 p.70-74
    Namibia
     
    • Otjikoto (Oshikoto) Region
      • Tsumeb
    		Tschermaks Min.Petr.Mitt.(1979) 26, 51-58
    Mineral and/or Locality
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