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Khaidarkanite

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Big Photo

Mednaya Gorka, Khaidarkan (Chaidarkan) Sb-Hg deposit, Fergana Valley, Alai (Alay) Range, Osh Oblast, Kyrgyzstan
© Rob Lavinsky

Show Khaidarkanite Photos (28)



Formula:
Na
 
0.34
Cu
 
4
Al
 
3
(OH)
 
14
F
 
3
 · 2H
 
2
O
System:MonoclinicLustre:Vitreous
Hardness:2½
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

IMA status:Approved
Strunz 8th edition ID:3/D.03-50
Nickel-Strunz 10th (pending) edition ID:3.DA.45

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

Type Locality:Khaidarkan (Chaidarkan) Sb-Hg deposit, Fergana Valley, Alai (Alay) Range, Osh Oblast, Kyrgyzstan

Physical Properties of Khaidarkanite

Lustre:Vitreous
Hardness (Mohs):2½

Crystallography of Khaidarkanite

Crystal System:Monoclinic
X-Ray Powder Diffraction:
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
Maximum Birefringence:δ = 0.063

Chart 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:
Na
 
0.34
Cu
 
4
Al
 
3
(OH)
 
14
F
 
3
 · 2H
 
2
O
Idealised Formula:
Cu
 
4
Al
 
3
(OH)
 
14
F
 
3
 · 2H
 
2
O
Essential elements:Al, Cu, F, H, Na, O
All elements listed in formula:Al, Cu, F, H, Na, O

Relationship of Khaidarkanite to other Species

Structurally related to group(s):
Cyanotrichite Group
Related Minerals - Nickel-Strunz Grouping):

- +
3.DA.05Melanothallite
Cu
 
2
Cl
 
2
O
3.DA.10aAtacamite
Cu
 
2
(OH)
 
3
Cl
3.DA.10bBotallackite
Cu
 
2
(OH)
 
3
Cl
3.DA.10bClinoatacamite
Cu
 
2
(OH)
 
3
Cl
3.DA.10aHibbingite
Fe
2+
2
(OH)
 
3
Cl
3.DA.10aKempite
Mn
2+
2
(OH)
 
3
Cl
3.DA.10cParatacamite
Cu
 
3
(Cu,Zn)(OH)
 
6
Cl
 
2
3.DA.10bBelloite
Cu(OH)Cl
3.DA.10cHerbertsmithite
Cu
 
3
Zn(OH)
 
6
Cl
 
2
3.DA.10cKapellasite
Cu
 
3
Zn(OH)
 
6
Cl
 
2
3.DA.10cGillardite
Cu
 
3
Ni(OH)
 
6
Cl
 
2
3.DA.10cHaydeeite
Cu
 
3
Mg(OH)
 
6
Cl
 
2
3.DA.10dAnatacamite
Cu
 
2
Cl(OH)
 
3
3.DA.15Claringbullite
Cu
 
4
(OH)
 
7
Cl · nH
 
2
O
3.DA.15Barlowite
Cu
 
4
BrF(OH)
 
6
3.DA.20Simonkolleite
Zn
 
5
Cl
 
2
(OH)
 
8
 · H
 
2
O
3.DA.25Buttgenbachite
Cu
 
19
(NO
 
3
)
 
2
(OH)
 
32
Cl
 
4
 · 2H
 
2
O
3.DA.25Connellite
Cu
 
19
(SO
 
4
)(OH)
 
32
Cl
 
4
 · 3H
 
2
O
3.DA.30Abhurite
Sn
 
21
Cl
 
16
(OH)
 
14
O
 
6
3.DA.35Ponomarevite
K
 
4
Cu
 
4
Cl
 
10
O
3.DA.40Anthonyite
Cu(OH,Cl)
 
2
 · 3H
 
2
O
3.DA.40Calumetite
Cu(OH,Cl)
 
2
 · 2H
 
2
O
3.DA.50Bobkingite
Cu
 
5
Cl
 
2
(OH)
 
8
 · 2H
 
2
O
3.DA.55Avdoninite
K
 
2
Cu
 
5
(OH)
 
4
Cl
 
8
 · H
 
2
O
3.DA.60Droninoite
Ni
 
3
Fe
3+
 
Cl(OH)
 
8
 · 2H
 
2
O

Other Names for Khaidarkanite

Synonyms:
IMA1998-013
Other Languages:
German:Khaidarkanit
Spanish:Khaidarkanita

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 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.

Internet Links for Khaidarkanite

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  • Raman and XRD data at RRUFF project
  • American Mineralogist Crystal Structure Database
  • Khaidarkanite details from Handbook of Mineralogy (PDF) [Link dead]
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    • Localities for Khaidarkanite

    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.
    Austria
     
    • Salzburg
      • Hohe Tauern Mts
        • Rauris valley
          • Hüttwinkl valley
            • Alteck Mt. - Hoher Sonnblick Mt. area
              • Hoher Sonnblick Mt.
    		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 (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 (Pitkäranta) District
            • Sortavala
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    Copyright © Jolyon Ralph and Ida Chau 1993-2011. Site Map. Locality, mineral & photograph data are the copyright of the individuals who submitted them. Further information contact the Site hosted & developed by Jolyon Ralph. Mindat.org is an online information resource dedicated to providing free mineralogical information to all. Mindat relies on the contributions of hundreds of members and supporters. Mindat does not offer minerals for sale. If you would like to add information to improve the quality of our database, then click here to register.
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