General Tlapallite Information Chemical Formula: |
H6(Ca,Pb)2Cu3(SO4)(Te++++O3)4(Te++++++O6) |
Composition: |
Molecular Weight = 1,382.46 gm |
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Calcium 4.35 % Ca 6.08 % CaO |
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Copper 13.79 % Cu 17.26 % CuO |
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Tellurium 46.15 % Te 57.72 % TeO2 |
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Hydrogen 0.44 % H 3.91 % H2O |
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Lead 7.49 % Pb 8.07 % PbO |
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Sulfur 2.32 % S 5.79 % SO3 |
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Oxygen 25.46 % O |
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______ ______ |
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100.00 % 98.84 % = TOTAL OXIDE |
Empirical Formula: |
H6Ca1.5Pb0.5Cu3(SO4)(TeO3)4(TeO6) |
IMA Status: |
Approved IMA 1978 |
Locality: |
Bambollita mine ("La Oriental"), Moctezuma, Sonora, Mexico. Link to MinDat.org Location Data. |
Name Origin: |
Named from the Nahua "tlapalli," paint, in allusion to its paintlike coating of rock surfaces. |
Name Pronunciation: |
Tlapallite + Pronunciation |
| | Tlapallite Image
Images:
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Tlapallite Crystallography Axial Ratios: |
a:b:c =1.3139:1:1.7189 |
Cell Dimensions: |
a = 11.97, b = 9.11, c = 15.66, Z = 4; beta = 90.04° V = 1,707.67 Den(Calc)= 5.38 |
Crystal System: |
MonoclinicSpace Group: Unk |
X Ray Diffraction: |
By Intensity(I/Io): 2.985(1), 11.972(1), 3.54(0.6), |
| Physical Properties of Tlapallite Cleavage: |
None |
Color: |
Green, Cyprus green. |
Density: |
4.65 |
Habit: |
Encrustations - Forms crust-like aggregates on matrix. |
Habit: |
Thin - Flat dimensioned crystals. |
Hardness: |
3 - Calcite |
Luminescence: |
Non-fluorescent. |
Luster: |
Vitreous (Glassy) |
| Optical Properties of Tlapallite Gladstone-Dale: |
CI meas= -0.095 (Poor) - where the CI = (1-KPDmeas/KC) |
CI calc= 0.053 (Good) - where the CI = (1-KPDcalc/KC) KPDcalc= 0.1822,KPDmeas= 0.2108,KC= 0.1924 Ncalc = 1.89 - 2.04 Optical Data: |
Biaxial (-), a=1.815-1.915, b=1.96-2.115, g=1.96-2.115, bire=0.1450-0.2000, 2V(Calc)=0, 2V(Meas)=small. |
| Calculated Properties of Tlapallite Electron Density: |
Bulk Density (Electron Density)=4.79 gm/cc |
note: Specific Gravity of Tlapallite =5.38 gm/cc. Fermion Index: |
Fermion Index = 0.05 |
Boson Index = 0.95 Photoelectric: |
PETlapallite = 295.27 barns/electron |
U=PETlapallite x rElectron Density=1,415.66 barns/cc. Radioactivity: |
GRapi = 0 (Gamma Ray American Petroleum Institute Units) |
Tlapallite is Not Radioactive | Tlapallite Classification Dana Class: |
34.08.02.01 (34)Selenites - Tellurites - Sulfites |
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(34.08)Dana Type |
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(34.08.02)Dana Group |
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Strunz Class: |
04.JL.25 04 - OXIDES (Hydroxides, V[5,6] vanadates, arsenites, antimonites, bismuthites, sulfites, selenites, tellurites, iodate |
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04.J - Arsenites, Antimonites, Bismuthites, Sulfites, |
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04.JL -Tellurites with additional anions, without H2O |
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| Other Tlapallite Information References: |
NAME( Dana8) PHYS. PROP.(Dana8) OPTIC PROP.(Dana8) |
See Also: |
Links to other databases for Tlapallite : |
1 - Am. Min. Crystal Structure Database 2 - Athena 3 - GeoScienceWorld 4 - Google Images 5 - Google Scholar 6 - Handbook of Mineralogy (MinSocAm) 7 - Handbook of Mineralogy (UofA) 8 - MinDAT 9 - Mineralienatlas (Deutsch) 10 - Online Mineral Museum 11 - QUT Mineral Atlas 12 - Ruff.Info Search for Tlapallite using: Visit our Advertisers for Tlapallite : A Bijoux Google Search for TlapalliteAdam's Minerals Google Search for Tlapallite Cape Minerals Google Search for Tlapallite Dakota Matrix Minerals Google Search for Tlapallite Excalibur Mineral Corp. Google Search for Tlapallite Exceptional Minerals Google Search for Tlapallite John Betts Fine Minerals Search for Tlapallite McDougall Minerals Google Search for Tlapallite Mineral News Website Link Rock and Mineral Shows Google Search for Tlapallite Weinrich Minerals, Inc. Google Search for Tlapallite Ask about Tlapallite here : Print or Cut-and-Paste your Tlapallite Specimen Label here :
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