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Xocomecatlite

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Formula:
Cu3(TeO4)(OH)4
System:
Orthorhombic
Colour:
emerald-green
Hardness:
4
Name:
From Nahua "xocomecatl", grapes, alluding to its occurrence in clusters of green spherules.
This page provides mineralogical data about Xocomecatlite.

Classification of Xocomecatlite

Approved 1974
7.BB.50

7 : SULFATES (selenates, tellurates, chromates, molybdates, wolframates)
B : Sulfates (selenates, etc.) with additional anions, without H2O
B : With medium-sized cations
Dana 7th ed.:
33.1.2.1
33.1.2.1

33 : SELENATES AND TELLURATES
1 : (AB)m(XO4)pZq
28.4.1

28 : Selenites, Selenates, Tellurites, and Tellurates
4 : Tellurates
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http://www.mindat.org/min-4342.html
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First Recorded Occurrence of Xocomecatlite

Year of Discovery:
1974

Physical Properties of Xocomecatlite

Colour:
emerald-green
Streak:
Light green
Hardness (Mohs):
4

Crystallography of Xocomecatlite

Crystal System:
Orthorhombic
Cell Parameters:
a = 12.14Å, b = 14.31Å, c = 11.66Å
Ratio:
a:b:c = 0.848 : 1 : 0.815
Unit Cell Volume:
V 2,025.61 ų (Calculated from Unit Cell)

Optical Data of Xocomecatlite

Type:
Biaxial (-)
RI values:
nα = 1.775 nβ = 1.900 nγ = 1.920
2V:
Measured: 41° , Calculated: 40°
Max Birefringence:
δ = 0.145
Image shows birefringence interference colour range (at 30µm thickness) and does not take into account mineral colouration.
Surface Relief:
Very High
Dispersion:
low

Chemical Properties of Xocomecatlite

Formula:
Cu3(TeO4)(OH)4
Essential elements:
All elements listed in formula:

Relationship of Xocomecatlite to other Species

7.BB.05CaminiteMg7(SO4)5(OH)4 · H2O
7.BB.10HauckiteFe33+(Mg,Mn2+)24Zn18(SO4)4(CO3)2(OH)81
7.BB.15AntleriteCu3(SO4)(OH)4
7.BB.20DolerophaniteCu2(SO4)O
7.BB.25BrochantiteCu4(SO4)(OH)6
7.BB.30VergasovaiteCu3(SO4)(MoO4,SO4)O
7.BB.35Klebelsbergite(SbO)4(SO4)(OH)2
7.BB.40SchuetteiteHg32+(SO4)O2
7.BB.45ParaotwayiteNi(OH)2-x(SO4,CO3)0.5x
7.BB.55Pauflerite(V4+O)SO4
7.BB.60GrandviewiteCu3Al9(SO4)2(OH)29
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)
28.4.8KhinitePb2+Cu32+[Te6+O6](OH)2
28.4.9Khinite-3TPb2+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 Xocomecatlite

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 Xocomecatlite

Reference List:
Mineralogical Magazine (1975): 40: 221-226.

American Mineralogist (1976): 61: 504.

Internet Links for Xocomecatlite

Localities for Xocomecatlite

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
      • Moctezuma
Min.Mag.(1975) 40, 221-226; Panczner(1987):136-399.
USA
 
  • Arizona
    • Cochise Co.
      • 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.
Anthony, J.W., et al (1995), Mineralogy of Arizona, 3rd.ed.: 267.
          • Silver Plume Mine (Emerald & Silver Plume Mine group)
Anthony, J.W., et al (1995), Mineralogy of Arizona, 3rd.ed.: 428; Williams, S.A. (1978), Khinite, parakhinite and dugganite, three new tellurates from Tombstone, AZ, Am.Min.: 63: 1016-1019.
  • California
    • San Bernardino Co.
      • Baker
        • Otto Mountain
collected by Eckhard D. Stuart; EDS and PXRD cofirmed by A. Kampf
Collected by Bob Housley. EDS and PXRD analyzed.
  • Utah
    • Juab Co.
      • East Tintic Mts
        • Tintic District
          • Eureka
[MinRec 27:464]; Canadian Mineralogist; February 1996; v. 34; no. 1; p. 49-54; Roberts, A. C., Ercit, T. S., & Cureton, F. F. (1994). Mcalpineite, Cu3TeO6. H20, from the McAlpine mine, Tuolumne County, California, and from the Centennial Eureka mine, Juab County, Utah I. Mineralogical Magazine, 58, 417-424.
    • Utah Co.
      • East Tintic Mts
        • East Tintic District
SEM EDS confirmed by Rob Bowell.
Mineral and/or Locality  
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