Tlapallite Mineral Data + 
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- 34.8.2.1 Tlapallite H6(Ca,Pb)2Cu3(SO4)(TeO3)4(TeO6) Unk Mono
- IV/K.17-10 Tlapallite H6(Ca,Pb)2Cu3(SO4)(TeO3)4(TeO6) Unk Mono
- IV/K.17-20 Schieffelinite Pb(Te,S)O4·(H2O) C mcm 2/m 2/m 2/m
General Tlapallite Information |
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 Chemical Formula: |
H6(Ca,Pb)2Cu3(SO4)(Te++++O3)4(Te++++++O6) | ||
| Composition: |
Molecular Weight = 1,382.46 gm | ||
| Calcium 4.35 % Ca 6.08 % CaO | |||
| Copper 13.79 % Cu 17.26 % CuO | |||
| Tellurium 46.15 % Te 57.72 % TeO2 | |||
| Hydrogen 0.44 % H 3.91 % H2O | |||
| Lead 7.49 % Pb 8.07 % PbO | |||
| Sulfur 2.32 % S 5.79 % SO3 | |||
| Oxygen 25.46 % O | |||
| ______ ______ | |||
| 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. | ||
Tlapallite Image | |||
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Images:
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Tlapallite Crystallography |
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| 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 |
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| 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 |
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| 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 |
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| 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 |
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| Electron Density: |
relectron=4.79 gm/cc |
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| Fermion Index |
Fermion Index = 0.05379 Boson Index = 0.94621 |
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| Photoelectric: |
PETlapallite = 295.27 barns/electron |
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| Radioactivity: |
GRapi = 0 (Gamma Ray American Petroleum Institute Units) Tlapallite is Not Radioactive |
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Tlapallite Classification |
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| Dana Class: |
34.8.2.1 (34)Selenites - Tellurites - Sulfites | ||
| (34.8)Dana Type | |||
| (34.8.2)Dana Group | |||
| Strunz Class: |
IV/K.17-10 IV - Oxides | ||
| IV/K - Complex Tellurides with [TeO6]6-, [TeO3]2- and [TeO4]2- groups | |||
| IV/K.17 - Tlapallite series | |||
Other Tlapallite Information |
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| 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 -Google Images 4 -Google Scholar 5 -Handbook of Mineralogy (UofA) 6 -MinDAT 7 -MinMax(Deutsch) 8 -MinMax(English) 9 -Mineralienatlas (Deutsch) 10 -QUT Mineral Atlas Search for Tlapallite using: Visit our Advertisers for Tlapallite : Translate Tlapallite Mineral Data : Ask about Tlapallite here : Print or Cut-and-Paste your Tlapallite Specimen Label here :
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