General Tlalocite Information Chemical Formula: |
Cu10Zn6(Te++++O3)(Te++++++O4)2Cl(OH)25•27(H2O) |
Composition: |
Molecular Weight = 2,533.64 gm |
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Zinc 15.49 % Zn 19.27 % ZnO |
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Copper 25.08 % Cu 31.40 % CuO |
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Tellurium 15.11 % Te 18.90 % TeO2 |
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Hydrogen 3.14 % H 28.09 % H2O |
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Chlorine 1.40 % Cl 1.40 % Cl |
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- %
Cl -0.32 % -O=Cl2 |
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Oxygen 39.78 % O |
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______ ______ |
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100.00 % 98.74 % = TOTAL OXIDE |
Empirical Formula: |
Cu10Zn6(TeO3)(TeO4)2Cl(OH)25•27(H2O) |
Environment: |
Secondary copper-zinc mineral. |
IMA Status: |
Approved IMA 1975 |
Locality: |
Bambollita mine, Moctezuma, Sonora, Mexico. Link to MinDat.org Location Data. |
Name Origin: |
Named for Tlaloc, the god of rain in the Toltec and Aztec civilizations, in allusion to its high water content. |
Name Pronunciation: |
Tlalocite + Pronunciation |
| | Tlalocite Image
Images:
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Tlalocite Crystallography Axial Ratios: |
a:b:c =0.8396:1:0.6039 |
Cell Dimensions: |
a = 16.78, b = 19.985, c = 12.069, Z = 4; V = 4,047.32 Den(Calc)= 4.16 |
Crystal System: |
OrthorhombicSpace Group: Unk. |
X Ray Diffraction: |
By Intensity(I/Io): 4.201(1), 16.787(1), 8.394(0.8), |
| Physical Properties of Tlalocite Color: |
Blue, Capri blue. |
Density: |
4.55 |
Fracture: |
Sectile - Curved shavings or scrapings produced by a knife blade, (e.g. graphite). |
Habit: |
Encrustations - Forms crust-like aggregates on matrix. |
Hardness: |
1 - Talc |
Streak: |
light blue |
| Optical Properties of Tlalocite Gladstone-Dale: |
CI meas= 0.219 (Poor) - where the CI = (1-KPDmeas/KC) |
CI calc= 0.146 (Poor) - where the CI = (1-KPDcalc/KC) KPDcalc= 0.1894,KPDmeas= 0.1732,KC= 0.2217 Ncalc = 1.92 - 2.01 Optical Data: |
Biaxial (-), a=1.758, b=1.796, g=1.81, bire=0.0520, 2V(Calc)=60, 2V(Meas)=64. |
Pleochroism (x): |
yellowish green. |
Pleochroism (y): |
bluish green. |
Pleochroism (z): |
bluish green. |
| Calculated Properties of Tlalocite Electron Density: |
Bulk Density (Electron Density)=4.03 gm/cc |
note: Specific Gravity of Tlalocite =4.16 gm/cc. Fermion Index: |
Fermion Index = 0.01 |
Boson Index = 0.99 Photoelectric: |
PETlalocite = 66.66 barns/electron |
U=PETlalocite x rElectron Density= 268.38 barns/cc. Radioactivity: |
GRapi = 0 (Gamma Ray American Petroleum Institute Units) |
Tlalocite is Not Radioactive | Tlalocite Classification Dana Class: |
33.03.02.01 (33)Selenates and Tellurates |
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(33.03)with other anion groups |
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(33.03.02)Dana Group |
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Strunz Class: |
07.DE.20 07 - SULFATES (SELENATES, TELLURATES) |
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07.D - Sulfates (selenates, etc.) with additional anions, with H2O |
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07.DE -With only medium-sized cations; unclassified |
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| Other Tlalocite Information References: |
NAME( Dana8) PHYS. PROP.(Enc. of Minerals,2nd ed.,1990) OPTIC PROP.(Dana8) |
See Also: |
Links to other databases for Tlalocite : |
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 Tlalocite using: Visit our Advertisers for Tlalocite : A Bijoux Google Search for TlalociteAdam's Minerals Google Search for Tlalocite Cape Minerals Google Search for Tlalocite Dakota Matrix Minerals Google Search for Tlalocite Excalibur Mineral Corp. Google Search for Tlalocite Exceptional Minerals Google Search for Tlalocite John Betts Fine Minerals Search for Tlalocite McDougall Minerals Google Search for Tlalocite Mineral News Website Link Rock and Mineral Shows Google Search for Tlalocite Weinrich Minerals, Inc. Google Search for Tlalocite Ask about Tlalocite here : Print or Cut-and-Paste your Tlalocite Specimen Label here :
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