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Kuranakhite

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Big Photo

Moctezuma Mine (Bambolla Mine), Moctezuma, Mun. de Moctezuma, Sonora, Mexico
© 2004 JBS

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Formula:
PbMn
4+
 
Te
6+
 
O
 
6
System:OrthorhombicColour:Pale brown to nearly ...
Hardness:4 - 5
Name:After the type locality.
This page provides mineralogical data about Kuranakhite.

Classification of Kuranakhite

IMA status:Approved
Strunz 8th edition ID:4/D.15-50
Nickel-Strunz 10th (pending) edition ID:4.DM.25

4 : OXIDES (Hydroxides, V[5,6] vanadates, arsenites, antimonites, bismuthites, sulfites, selenites, tellurites, iodates)
D : Metal: Oxygen = 1:2 and similar
M : With large (+- medium-sized) cations; unclassified
Dana 7th edition ID:33.2.1.1
Dana 8th edition ID:33.2.1.1

33 : SELENATES AND TELLURATES
2 : (AB)m(XO6)·xH2O, where x can equal zero
Hey's CIM Ref.:28.4.15

28 : Selenites, Selenates, Tellurites, and Tellurates
4 : Tellurates
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Type Occurrence of Kuranakhite

Type Locality:Kuranakh Au Deposit, Aldan, Aldan Shield, Saha Republic (Sakha Republic; Yakutia), Eastern-Siberian Region, Russia
Place of Conservation of Type Material:A. E. Fernsman Mineral Museum, Moscow, Russia 76494
Year of Discovery:1975
Geological Setting of type material:In the oxidation zone of a gold-quartz deposit.

Occurrences of Kuranakhite

Geological Setting:Gold quartz deposits

Physical Properties of Kuranakhite

Lustre:Vitreous
Diaphaneity (Transparency):Translucent
Colour:Pale brown to nearly black
Streak:Brown
Hardness (Mohs):4 - 5
Hardness (Vickers):VHN100=228 - 441
Tenacity:Brittle
Density (measured):6.72(2) g/cm3
Density (calculated):6.66 g/cm3

Crystallography of Kuranakhite

Crystal System:Orthorhombic
Cell Parameters:a = 5.11(1) Å, b = 8.91(1) Å, c = 5.32(1) Å
Ratio:a:b:c = 0.574 : 1 : 0.597
Unit Cell Volume:V 242.22 ų (Calculated from Unit Cell)
Z:2
Morphology:As tiny grains to 0.25mm
Comment:Space group may be C

Optical Data of Kuranakhite

Type:Biaxial (+/-)
RI values: nα = 1.952 - 1.960 nβ = 1.980 nγ = 2.002 - 2.010
Birefringence:Weak; in rose tints.
Maximum Birefringence:δ = 0.050

Chart shows birefringence interference colour range (at 30µm thickness) and does not take into account mineral colouration.
Surface Relief:Very High
Type:Anisotropic
Anisotropism:Distinct, bright blue to brown
Reflectivity:
460nmR=24.4%
540nmR=24.0%
580nmR=24.5%
660nmR=23.0%


Graph shows reflectance levels at different wavelengths (in nm). Peak reflectance is 24.5%.

Chemical Properties of Kuranakhite

Formula:
PbMn
4+
 
Te
6+
 
O
 
6
Essential elements:Mn, O, Pb, Te
All elements listed in formula:Mn, O, Pb, Te
Empirical Formula:
PbMn
4+
 
Te
6+
 
O
 
6

Relationship of Kuranakhite to other Species

Related Minerals - Nickel-Strunz Grouping):

- +
4.DM.05Rankamaite
(Na,K)
 
3
(Ta,Nb,Al)
 
11
(O,OH)
 
31
4.DM.05Sosedkoite
(K,Na)
 
5
Al
 
2
(Ta,Nb)
 
22
O
 
60
4.DM.15Cesplumtantite
(Cs,Na)
 
2
(Pb,Sb
3+
 
)
 
3
Ta
 
8
O
 
24
4.DM.20Eyselite
Fe
3+
 
Ge
4+
3
O
 
7
(OH)
Related Minerals - Hey's Index Grouping:

- +
28.4.1Xocomecatlite
Cu
 
3
(TeO
 
4
)(OH)
 
4
28.4.2Carlfriesite
CaTe
4+
2
Te
6+
 
O
 
8
28.4.3Yafsoanite
Ca
 
3
Zn
 
3
(TeO
 
6
)
 
2
28.4.4Tlalocite
Cu
 
10
Zn
 
6
(Te
6+
 
O
 
4
)
 
2
(Te
4+
 
O
 
3
)(OH)
 
25
Cl · 27H
 
2
O
28.4.5Oboyerite
H
 
6
(Pb,Ca)
 
6
(Te
4+
 
O
 
3
)
 
3
(Te
6+
 
O
 
6
)
 
2
 · 2H
 
2
O
28.4.6Schieffelinite
Pb
 
8
(TeO
 
4
)
 
5
(SO
 
4
)
 
3
 · 8H
 
2
O
28.4.7Girdite
H
 
2
Pb
 
3
(Te
4+
 
O
 
3
)(Te
6+
 
O
 
6
)
28.4.8Khinite
Pb
2+
 
Cu
2+
3
Te
6+
 
O
 
6
(OH)
 
2
28.4.9Parakhinite
Pb
2+
 
Cu
2+
3
Te
6+
 
O
 
6
(OH)
 
2
28.4.10Dugganite
Pb
 
3
Zn
 
3
(AsO
 
4
)
 
2
(TeO
 
6
)
28.4.11Kuksite
Pb
 
3
Zn
 
3
(PO
 
4
)
 
2
(TeO
 
6
)
28.4.12Cheremnykhite
Pb
 
3
Zn
 
3
(VO
 
4
)
 
2
(TeO
 
6
)
28.4.13Tlapallite
H
 
6
(Ca,Pb)
 
2
(Cu,Zn)
 
3
(TeO
 
3
)
 
4
(TeO
 
6
)(SO
 
4
)
28.4.14Montanite
Bi
 
2
(TeO
 
6
) · 2H
 
2
O
28.4.16Cuzticite
Fe
3+
2
(TeO
 
6
) · 3H
 
2
O
28.4.17Yecoraite
Fe
3+
3
Bi
 
5
(Te
6+
 
O
 
4
)
 
2
(Te
4+
 
O
 
3
)O
 
9
 · 9H
 
2
O

Other Names for Kuranakhite

Synonyms:
IMA1974-030
Other Languages:
German:Kuranakhit
Spanish:Kuranakhita

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 Kuranakhite

Reference List:

- +
American Mineralogist(1976): 61: 339.

Zapiski Vserossiyskogo Mineralogicheskogo Obshchestva: 104: 310-313.

Xinchun Zhou, Liang Liu, Shizhong Wang, Jianmin Hu, Jincai Yan, and Jiankun Yang (1997): Kuranakhite discovered in China for the first time. Acta Mineralogica Sinica 17(2), 115-119

Internet Links for Kuranakhite

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

    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.
    Canada
     
    • Ontario
      • Timiskaming District
        • Bannockburn Township
          • Matachewan
    		Handbook of Mineralogy - Anthony, Bideaux, Bladh, Nichols
    China
     
    • Shaanxi Province
      • Shangluo Prefecture
        • Luonan Co.
    		Xinchun Zhou, Liang Liu, Shizhong Wang, Jianmin Hu, Jincai Yan, and Jiankun Yang (1997): Acta Mineralogica Sinica 17(2), 115-119
    Mexico
     
    • Sonora
      • Mun. de Moctezuma
    Panczner(1987):108-336.
    Russia
     
    • Eastern-Siberian Region
      • Saha Republic (Sakha Republic; Yakutia)
        • Aldan Shield
          • Aldan
    		Handbook of Mineralogy - Anthony, Bideaux, Bladh, Nichols; Pekov, I. (1998) Minerals First discovered on the territory of the former Soviet Union 369p. Ocean Pictures, Moscow
    Mills, S. J., Kampf, A. R., Kolitsch, U., Housley, R. M. & Raudsepp, M. (2010) The crystal chemistry and crystal structure of kuksite, Pb3Zn3Te6+P2O14, and a note on the crystal structure of yafsoanite, (Ca,Pb)3Zn(TeO6)2. American Mineralogist, 95(7), 933–938.
    USA
     
    • California
      • San Bernardino Co.
        • Baker
    		Joe Marty, Anthony Kampf, Robert Housley, Stuart Mills, Stefan Weiss (2010) Seltene neue Tellurmineralien aus Kalifornien, Utah, Arizona und New Mexico (USA). Lapis, 35, #12, 42-51.
    Mineral and/or Locality
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    Copyright © Jolyon Ralph and Ida Chau 1993-2013. 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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