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Khinite

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Formula:
Pb2+Cu32+[Te6+O6](OH)2
System:
Orthorhombic
Colour:
Dark green to bottle ...
Hardness:
3
Name:
For Basaw Khin, Phelps Dodge mineralogist
Unit cell data below apply to the 4O polytype. Khinite-3T is trigonal, space group P3(2), a = 5.765(2) Å, c = 18.001(9) Å, V = 518.0(4) Å3, Z = 3. The two structures have different stackings of otherwise identical layers of composition [Cu3(TeO6)(OH)2]2-, with Pb2+ cations between the layers. The [TeO6] octahedra share a pair of opposite edges with one third of the Cu in CuO4 squares, while the remaining TeO6 oxygens cross-link to [Cu2O2(OH)2] ribbons to make a continuous layer. Long, weak Cu...O bonds complete very elongated octahedra around Cu, and reinforce the layer.

Classification of Khinite

Approved 1978
4.FD.30

4 : OXIDES (Hydroxides, V[5,6] vanadates, arsenites, antimonites, bismuthites, sulfites, selenites, tellurites, iodates)
F : Hydroxides (without V or U)
D : Hydroxides with OH, without H2O; chains of edge-sharing octahedra
Dana 7th ed.:
33.1.3.1
33.1.3.1

33 : SELENATES AND TELLURATES
1 : (AB)m(XO4)pZq
28.4.8

28 : Selenites, Selenates, Tellurites, and Tellurates
4 : Tellurates
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http://www.mindat.org/min-2199.html
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First Recorded Occurrence of Khinite

General Appearance of First Recorded Material:
Deeply etched curved or barrel shaped bipyramids
Place of Conservation of First Recorded Material:
British Museum
Year of Discovery:
1978
Associated Minerals at First Recorded Locality:

Physical Properties of Khinite

Colour:
Dark green to bottle green
Streak:
vivid green
Hardness (Mohs):
3
Density:
6.5 - 7 g/cm3 (Measured)    6.29 g/cm3 (Calculated)

Crystallography of Khinite

Crystal System:
Orthorhombic
Class (H-M):
mm2 - Pyramidal
Space Group:
Fdd2
Cell Parameters:
a = 5.749(10) Å, b = 10.0176(14) Å, c = 24.022(3) Å
Ratio:
a:b:c = 0.574 : 1 : 2.398
Unit Cell Volume:
V 1383.6 ų
Z:
8
Comment:
from Empire Mine, Tombstone, Arizona

Optical Data of Khinite

Type:
Biaxial (+)
RI values:
nα = 2.110 nβ = 2.112 nγ = 2.165
2V:
Measured: 20° , Calculated: 24°
Max Birefringence:
δ = 0.055
Image shows birefringence interference colour range (at 30µm thickness) and does not take into account mineral colouration.
Surface Relief:
Very High
Dispersion:
strong

Chemical Properties of Khinite

Formula:
Pb2+Cu32+[Te6+O6](OH)2
Essential elements:
All elements listed in formula:

Relationship of Khinite to other Species

4.FD.05SpertiniiteCu(OH)2
4.FD.10BracewelliteCrO(OH)
4.FD.10DiasporeAlO(OH)
4.FD.10GroutiteMn3+O(OH)
4.FD.10GuyanaiteCrO(OH)
4.FD.10Montroseite(V3+,Fe3+)O(OH)
4.FD.10TsumgalliteGaO(OH)
4.FD.15ManganiteMn3+O(OH)
4.FD.20Yttrotungstite-(Y)YW2O6(OH)3
4.FD.20Yttrotungstite-(Ce)(Ce,Nd,Y)W2O6(OH)3
4.FD.20Unnamed (Nd-analogue of Yttrotungstite-(Ce))(Nd,Ce,La)W2O6(OH)3
4.FD.25FrankhawthorneiteCu2Te6+O4(OH)2
4.FD.30ParakhinitePb2+Cu32+Te6+O6(OH)2
28.4.1XocomecatliteCu3(TeO4)(OH)4
28.4.2CarlfriesiteCaTe24+Te6+O8
28.4.3YafsoaniteCa3Zn3(TeO6)2
28.4.4TlalociteCu10Zn6(Te6+O4)2(Te4+O3)(OH)25Cl · 27H2O
28.4.5OboyeriteH6(Pb,Ca)6(Te4+O3)3(Te6+O6)2 · 2H2O
28.4.6SchieffelinitePb8(TeO4)5(SO4)3 · 8H2O
28.4.7GirditeH2Pb3(Te4+O3)(Te6+O6)
28.4.9ParakhinitePb2+Cu32+Te6+O6(OH)2
28.4.10DugganitePb3Zn3(AsO4)2(TeO6)
28.4.11KuksitePb3Zn3(PO4)2(TeO6)
28.4.12CheremnykhitePb3Zn3(VO4)2(TeO6)
28.4.13TlapalliteH6(Ca,Pb)2(Cu,Zn)3(TeO3)4(TeO6)(SO4)
28.4.14MontaniteBi2(TeO6) · 2H2O
28.4.15KuranakhitePbMn4+Te6+O6
28.4.16CuzticiteFe23+(TeO6) · 3H2O
28.4.17YecoraiteFe33+Bi5(Te6+O4)2(Te4+O3)O9 · 9H2O

Other Names for Khinite

Name in Other Languages:
German:Khinit
Spanish:Khinita

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 Khinite

Reference List:
Williams, S.A. (1978), Khinite, parakhinite, and dugganite, three new tellurates from Tombstone, AZ, American Mineralogist: 63: 1016-1019.

Cooper, M.A., F.C.Hawthorne, & M.E.Back (2008), The crystal structure of khinite and polytypism in khinite and parakhinite. Mineralogical Magazine 72(3),763-770(2008)

Hawthorne, F.C., Cooper, M.A. and Back, M.E. (2009) Khinite-4O (= khinite) and khinite-3T (= parakhinite). Canadian Mineralogist, 47, 473-476.

Internet Links for Khinite

Localities for Khinite

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.
Mexico
 
  • Sonora
    • Mun. de Moctezuma
Lapis 2001(1), 11-40
Maggie Wilson
USA
 
  • Arizona
    • Cochise Co.
      • Huachuca Mts
        • Hartford District (Huachuca Mountains District)
          • Carr Canyon
"The Accidental Pocket" talk presented by Robert E. Walstrom at 2012 NCMA meeting.
      • Tombstone Hills
Anthony, J.W., et al (1995), Mineralogy of Arizona, 3rd.ed.: 209; Williams, S.A. (1978), Khinite, parakhinite, and dugganite, three new tellurates from Tombstone, Arizona, Am.Min.: 63: 1016-1019.
Brent Thorne
Mike Scott S102329 from Cureton ex S. Williams.
Anthony, J.W., et al (1995), Mineralogy of Arizona, 3rd.ed.: 267; Williams, S.A. (1978), Khinite, parakhinite, and dugganite, three new tellurates from Tombstone, AZ, Am.Min.: 63: 1016-1019.
  • California
    • San Bernardino Co.
      • Baker
Van King
        • Otto Mountain
EDS and XRD confirmed.; Robert M. Housley (2005) Recent rare mineral finds in southern California and Nevada desert mines. Abstracts from the 2005 Desert Symposium. California State University, Desert Studies Consortium and LSA Associates, Inc.
Joe Marty specimens. Kampf, A.R., Mills, S.J., Housley, R.M., Marty, J., and Thorne, B. (2010): American Mineralogist 95, 1554–1559.
Collected by and in the collection of Brent Thorne.
Collected by and in the collection of Brent Thorne.
Collected by and in the collection of Brent Thorne
Collected by and in the collection of Brent Thorne.
      • Soda Lake Mts
        • Baker
Collected by and in the collections of Brent Thorne. EDS confirmed by Robert Housley.
  • Utah
    • Utah Co.
      • East Tintic Mts
        • East Tintic District
SEM-EDS analzyed by Dr. Rob Bowell.
Mineral and/or Locality  
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