General Xocomecatlite InformationCu3Te++++++O4(OH)4 |
Molecular Weight = 450.26 gm |
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Copper 42.34 % Cu 53.00 % CuO |
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Tellurium 28.34 % Te 35.45 % TeO2 |
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Hydrogen 0.90 % H 8.00 % H2O |
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Oxygen 28.43 % O |
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______ ______ |
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100.00 % 96.45 % = TOTAL OXIDE |
Cu3(TeO4)(OH)4 |
In cracks in altered rhyolite. |
Approved IMA 1975 |
Bambollita mine, Moctezuma, Sonora, Mexico. Link to MinDat.org Location Data. |
Named for the Nahuatl for "bunches of grapes", in allusion to the appearance of the green spherules of the mineral. |
Xocomecatlite + Pronunciation |
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Xocomecatlite Crystallographya:b:c =0.8478:1:0.8144 |
a = 12.14, b = 14.318, c = 11.662, Z = 12; V = 2,027.09 Den(Calc)= 4.43 |
OrthorhombicSpace Group: Unk |
By Intensity(I/Io): 4.627(1), 2.673(0.6), 3.439(0.4), |
| Physical Properties of XocomecatliteGreen, Emerald green. |
4.65 |
Tough - Difficult to break apart as shown by fibrous minerals and most metals. |
Botryoidal - "Grape-like" rounded forms (e.g.. malachite). |
Radial - Crystals radiate from a center without producing stellar forms (e.g. stibnite) |
Spherical - Spherical, rounded aggregates. |
4 - Fluorite |
Non-fluorescent. |
light green |
| Optical Properties of XocomecatliteCI meas= 0.013 (Superior) - where the CI = (1-KPDmeas/KC) |
CI calc= -0.036 (Excellent) - where the CI = (1-KPDcalc/KC) KPDcalc= 0.1953,KPDmeas= 0.186,KC= 0.1886 Ncalc = 1.84 - 1.88 Biaxial (-), a=1.775, b=1.9, g=1.92, bire=0.1450, 2V(Calc)=40, 2V(Meas)=41. Dispersion low. |
rich bluish green. |
| Calculated Properties of XocomecatliteBulk Density (Electron Density)=4.28 gm/cc |
note: Specific Gravity of Xocomecatlite =4.65 gm/cc. Fermion Index = 0.02 |
Boson Index = 0.98 PEXocomecatlite = 114.00 barns/electron |
U=PEXocomecatlite x rElectron Density= 487.39 barns/cc. GRapi = 0 (Gamma Ray American Petroleum Institute Units) |
Xocomecatlite is Not Radioactive | Xocomecatlite Classification33.01.02.01 (33)Selenates and Tellurates |
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(33.01)as A+ (B++)m XO4 Zq |
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(33.01.02)Dana Group |
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07.BB.50 07 - SULFATES (SELENATES, TELLURATES) |
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07.B - Sulfates (selenates, etc.) with Additional Anions, without H2O |
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07.BB -With medium-sized cations |
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| Other Xocomecatlite InformationNAME( Dana8) PHYS. PROP.(Enc. of Minerals,2nd ed.,1990) OPTIC PROP.(Enc. of Minerals,2nd ed.,1990) |
Links to other databases for Xocomecatlite : |
1 - Am. Min. Crystal Structure Database 2 - Athena 3 - EUROmin Project 4 - Ecole des Mines de Paris 5 - GeoScienceWorld 6 - Google Images 7 - Google Scholar 8 - Handbook of Mineralogy (MinSocAm) 9 - Handbook of Mineralogy (UofA) 10 - MinDAT 11 - Mineralienatlas (Deutsch) 12 - Online Mineral Museum 13 - QUT Mineral Atlas 14 - Ruff.Info Search for Xocomecatlite using: Visit our Advertisers for Xocomecatlite : B and L Fine MineralsDakota Matrix Minerals Dan & Diana Weinrich Mineral Auctions Excalibur Mineral Corp. Exceptional Minerals John Betts Fine Minerals Mineral News Mineral of the Month Club NY/NJ Gem & Mineral Show TIMA Mineral Analyzer Weinrich Minerals, Inc. Wright's Rock Shop Ask about Xocomecatlite here : Print or Cut-and-Paste your Xocomecatlite Specimen Label here :
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