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Quetzalcoatlite

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Quetzalcoatl
Formula:
Zn6Cu3(TeO6)2(OH)6 · AgxPbyClx+2y
System:
Trigonal
Colour:
Blue
Hardness:
3
Name:
Named after Quetzalcoatl, the Toltec and Aztec god of the sea. In allusion to it's color.
May be confused with tlalocite.

Classification of Quetzalcoatlite

Approved
4.FE.45

4 : OXIDES (Hydroxides, V[5,6] vanadates, arsenites, antimonites, bismuthites, sulfites, selenites, tellurites, iodates)
F : Hydroxides (without V or U)
E : Hydroxides with OH, without H2O; sheets of edge-sharing octahedra
34.6.3.1

34 : SELENITES, TELLURITES AND SULFITES
6 : Anhydrous Selenites, Tellurites and Sulfites containing Hydroxyl or Halogen
28.3.7

28 : Selenites, Selenates, Tellurites, and Tellurates
3 : Tellurites
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First Recorded Occurrence of Quetzalcoatlite

Place of Conservation of First Recorded Material:
Smithsonian 135055
Year of Discovery:
1973
Geological Setting of First Recorded Material:
Oxidation zone of tellurium bearing hydrothermal deposit.

Occurrences of Quetzalcoatlite

Geological Setting:
Oxidation zone of tellurium bearing hydrothermal deposit.

Physical Properties of Quetzalcoatlite

Pearly, Dull
Diaphaneity (Transparency):
Transparent
Colour:
Blue
Streak:
Pale blue, almost white
Hardness (Mohs):
3
Tenacity:
Brittle
Cleavage:
Imperfect/Fair
fair on {1010}
Density:
6.05(30) g/cm3 (Measured)    4.82 g/cm3 (Calculated)

Crystallography of Quetzalcoatlite

Crystal System:
Trigonal
Class (H-M):
3m (3 2/m) - Hexagonal Scalenohedral
Space Group:
P3m1
Cell Parameters:
a = 10.145(1) Å, c = 4.9925(9) Å
Ratio:
a:c = 1 : 0.492
Unit Cell Volume:
V 445 ų
Z:
1
Morphology:
Needle-like hexagonal crystals, sprays, crystalline crusts.

Optical Data of Quetzalcoatlite

Type:
Uniaxial (-)
RI values:
nω = 1.802 nε = 1.740
Max Birefringence:
δ = 0.062
Image shows birefringence interference colour range (at 30µm thickness) and does not take into account mineral colouration.
Surface Relief:
Very High
Optical Extinction:
Parallel - length fast
Pleochroism:
Visible
Comments:
O - blue-green
E - almost colorles

Chemical Properties of Quetzalcoatlite

Formula:
Zn6Cu3(TeO6)2(OH)6 · AgxPbyClx+2y
Essential elements:
All elements listed in formula:

Relationship of Quetzalcoatlite to other Species

4.FE.05Amakinite(Fe2+,Mg)(OH)2
4.FE.05BruciteMg(OH)2
4.FE.05PortlanditeCa(OH)2
4.FE.05PyrochroiteMn(OH)2
4.FE.05TheophrastiteNi(OH)2
4.FE.10BayeriteAl(OH)3
4.FE.10DoyleiteAl(OH)3
4.FE.10GibbsiteAl(OH)3
4.FE.10NordstranditeAl(OH)3
4.FE.15BöhmiteAlO(OH)
4.FE.15Lepidocrociteγ-Fe3+O(OH)
4.FE.20GrimaldiiteCrO(OH)
4.FE.20HeterogeniteCoO(OH)
4.FE.25FeitknechtiteMn3+O(OH)
4.FE.25Lithiophorite(Al,Li)MnO2(OH)2
4.FE.30QuenselitePbMnO2(OH)
4.FE.35FerrihydriteFe103+O14(OH)2
4.FE.40FeroxyhyteFe3+O(OH)
4.FE.40Vernadite(Mn4+,Fe3+,Ca,Na)(O,OH)2 · nH2O
28.3.1BalyakiniteCu(TeO3)
28.3.2RajiteCu(Te24+O5)
28.3.3GraemiteCu[TeO3] · H2O
28.3.4TeineiteCu[TeO3] · 2H2O
28.3.5CesbroniteCu5(TeO3)2(OH)6 · 2H2O
28.3.6MroseiteCaTe4+(CO3)O2
28.3.8ZemanniteMg(ZnFe)2(TeO3)6·9H2O
28.3.9Kinichilite(Fe,Mg,Zn)2(TeO3)3(NaxH2-x) · 3H2O
28.3.10Denningite(Mn2+,Ca,Zn)Te24+O5
28.3.11Spiroffite(Mn,Zn)2Te34+O8
28.3.12WinstanleyiteTiTe34+O8
28.3.13FairbankitePb(TeO3)
28.3.14PlumbotelluritePb(TeO3)
28.3.15Choloalite(Cu,Sb)3(Pb,Ca)3(TeO3)6Cl
28.3.16SmirniteBi2Te4+O5
28.3.17ChekhovichiteBi2Te44+O11
28.3.18Cliffordite(UO2)Te34+O7
28.3.19Schmitterite(UO2)(TeO3)
28.3.20MoctezumitePb(UO2)(TeO3)2
28.3.21EmmonsiteFe23+[TeO3]3 · 2H2O
28.3.22BlakeiteFe23+[TeO3]3 (?)
28.3.23MackayiteFe3+(Te24+O5)(OH)
28.3.24PoughiteFe23+(TeO3)2(SO4)(H2O)2 · H2O
28.3.25SonoraiteFe3+(TeO3)(OH) · H2O
28.3.26RodalquilariteFe2(TeO2OH)3(TeO3)Cl
28.3.27EztlitePb2Fe63+(Te4+O3)3(Te6+O6)(OH)10 · 8H2O
28.3.28Keystoneite(Ni,Mg,Fe,Mn)3Te3O9 · 5H2O

Other Names for Quetzalcoatlite

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 Quetzalcoatlite

Reference List:
American Mineralogist (1974): 59: 874.

Burns, P.C., Pluth, J.J., Smith, J.V., Eng, P., Steele, I., and Houseley, R.M. (2000) Quetzalcoatlite: a new octahedral-tetrahedral structure from a 2 x 2 x 40 um3 crystal at the Advanced Photon Source-GSE-CARS facility. American Mineralogist 85: 604-607.

Mineralogical Magazine: 39: 261-263.

Internet Links for Quetzalcoatlite

Localities for Quetzalcoatlite

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
Min.Mag.(1973) 39, 261-263; Panczner(1987):136-399.
USA
 
  • Arizona
    • Cochise Co.
      • Tombstone Hills
        • Tombstone District
Brent Thorne
Anthony, J.W., et al (1995), Mineralogy of Arizona, 3rd.ed.: 350; Williams, S.A. (1978), Khinite, parakhinite, and dugganite, three new tellurates from Tombstone, AZ, Am.Min.: 63: 1016-1019.; American Mineralogist, Volume 94, pages 648–652, 2009
  • California
    • San Bernardino Co.
      • Soda Lake Mts
        • Baker
American Mineralogist (2000): 85: 604, 607; Lapis 33 (4) (2008) 12; American Mineralogist, Volume 94, pages 1198–1204, 2009
  • Utah
    • Juab Co.
      • East Tintic Mts
        • Tintic District
          • Eureka
[MinRec 27:464]
    • Utah Co.
      • East Tintic Mts
        • East Tintic District
SEM EDS confirmed by Rob Bowell.
Mineral and/or Locality  
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