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Khaidarkanite

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Formula:
Na0.34Cu4Al3(OH)14F3 · 2H2O
System:
Monoclinic
Lustre:
Vitreous
Hardness:
Name:
Named after the discovery locality.
Cyanotrichite Group.
Visually similar to cyanotrichite and carbonatecyantrichite.

A small amount of sulphate may be present (or even necessary) in khaidarkanite; the Na content may be variable (Hager et al., 2009).

Hager et al. (2009) attributed the Na content to impurities.

Classification of Khaidarkanite

Approved
3.DA.45

3 : HALIDES
D : Oxyhalides, hydroxyhalides and related double halides
A : With Cu, etc., without Pb
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First Recorded Occurrence of Khaidarkanite

Physical Properties of Khaidarkanite

Vitreous
Hardness (Mohs):

Crystallography of Khaidarkanite

Crystal System:
Monoclinic
X-Ray Powder Diffraction Data:
d-spacingIntensity
10.29 (80)
5.589 (90)
4.232 (100)
2.828 (90)
2.362 (100)
1.871 (80)
1.817 (80)

Optical Data of Khaidarkanite

Type:
Biaxial (+)
RI values:
nα = 1.585 nβ = 1.615 nγ = 1.648
Max Birefringence:
δ = 0.063
Image shows birefringence interference colour range (at 30µm thickness) and does not take into account mineral colouration.
Surface Relief:
Moderate
Dispersion:
small

Chemical Properties of Khaidarkanite

Formula:
Na0.34Cu4Al3(OH)14F3 · 2H2O
Idealised Formula:
Cu4Al3(OH)14F3 · 2H2O
Essential elements:
All elements listed in formula:

Relationship of Khaidarkanite to other Species

Structurally related to group(s):
3.DA.05MelanothalliteCu2Cl2O
3.DA.10aAtacamiteCu2(OH)3Cl
3.DA.10bBotallackiteCu2(OH)3Cl
3.DA.10bClinoatacamiteCu2(OH)3Cl
3.DA.10aHibbingiteFe22+(OH)3Cl
3.DA.10aKempiteMn22+(OH)3Cl
3.DA.10cParatacamiteCu3(Cu,Zn)(OH)6Cl2
3.DA.10bBelloiteCu(OH)Cl
3.DA.10cHerbertsmithiteCu3Zn(OH)6Cl2
3.DA.10cKapellasiteCu3Zn(OH)6Cl2
3.DA.10cGillarditeCu3Ni(OH)6Cl2
3.DA.10cHaydeeiteCu3Mg(OH)6Cl2
3.DA.10dAnatacamiteCu2(OH)3Cl
3.DA.15ClaringbulliteCu4ClF(OH)6
3.DA.15BarlowiteCu4BrF(OH)6
3.DA.20SimonkolleiteZn5Cl2(OH)8 · H2O
3.DA.25ButtgenbachiteCu19(NO3)2(OH)32Cl4 · 2H2O
3.DA.25ConnelliteCu19(SO4)(OH)32Cl4 · 3H2O
3.DA.30AbhuriteSn21Cl16(OH)14O6
3.DA.35PonomareviteK4Cu4Cl10O
3.DA.40AnthonyiteCu(OH,Cl)2 · 3H2O
3.DA.40CalumetiteCu(OH,Cl)2 · 2H2O
3.DA.50BobkingiteCu5Cl2(OH)8 · 2H2O
3.DA.55AvdoniniteK2Cu5(OH)4Cl8 · H2O
3.DA.60DroninoiteNi6Fe32+(OH)16Cl2 · 4H2O

Other Names for Khaidarkanite

Name in Other Languages:

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 Khaidarkanite

Reference List:
Zapiski Vserossiyskogo Mineralogicheskogo Obshchestva (1999): 128(3): 58-63.

Hager, S. L., Leverett, P. & Williams, P. A. (2009): Possible structural and chemical relationships in the cyanotrichite group. Canadian Mineralogist 47, 635-648.

Mills, S.J., Christy, A.G., Schnyder, C., Favreau, G., Price, J.R. (2015): The crystal structure of camerolaite and structural variation in the cyanotrichite family of merotypes. Mineralogical Magazine, 78, 1527–1552.

Internet Links for Khaidarkanite

Localities for Khaidarkanite

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.
Austria
 
  • Salzburg
    • Hohe Tauern
      • Rauris valley
        • Hüttwinkl valley
          • Alteck - Hoher Sonnblick area
            • Hoher Sonnblick
Schnorrer, G. & Bacher, F. (2000): Die Mineralien von der Sonnblick- Nordwand, Rauris, Salzburg / Österreich - insbesondere der erste Khaidarkanit- Fund in Österreich. Mineralien-Welt, 11 (5), 52-57.
Germany
 
  • Baden-Württemberg
    • Black Forest
      • Wolfach
        • Oberwolfach
          • Rankach valley
U. Kolitsch, J. Gröbner, F. Brandstätter and R. Bayerl (2010): Neufunde aus der Grube Clara im mittleren Schwarzwald (IV): Calcioandyrobertsit, Cotunnit, Gerhardtit, Khaidarkanit, Lukrahnit, Mckinstryit, Moolooit, Rhabdophan-(La), Rouait und Uricit. Lapis 35 (9), 22-27; 62 (in German).
Kyrgyzstan
 
  • Osh Oblast
    • Alai Range (Alay Range)
      • Fergana Valley
[ZVMO,(1999) 128, n. 3, 58-63; AmMin 85:1322]
Robert Lavinsky specimen
Russia
 
  • Northern Region
    • Karelia Republic
      • Ladoga Region
        • Pitkyaranta District (Pitkäranta District)
          • Sortavala
Mineral and/or Locality  
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