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Denningite Mineral Data |
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Denningite Mineral Data |
General Denningite Information |
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 Chemical Formula: |
(Mn,Zn)Te2O5 | ||
| Composition: |
Molecular Weight = 392.75 gm | ||
| Manganese 10.49 % Mn 13.55 % MnO | |||
| Zinc 4.16 % Zn 5.18 % ZnO | |||
| Tellurium 64.98 % Te 81.27 % TeO2 | |||
| Oxygen 20.37 % O | |||
| ______ ______ | |||
| 100.00 % 100.00 % = TOTAL OXIDE | |||
| Empirical Formula: |
Mn2+0.75Zn0.25Te2O5 | ||
| Environment: |
Hydrothermal Au-Te deposit. | ||
| IMA Status: |
Approved IMA 1962 | ||
| Locality: |
Moctezuma (Bambolla) mine, 12 km south of Moctezuma, Sonora, Mexico. Link to MinDat.org Location Data. | ||
| Name Origin: |
Named for Reynolds McConnell Denning (1916-1967), Professor of Mineralogy, University of Michigan, Ann Arbor, Michigan, USA. | ||
| Name Pronunciation: |
Denningite + Pronunciation  |
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| Synonym: |
ICSD 73991 | ||
| PDF 45-1368 | |||
Denningite Image | |||
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Images:
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Denningite Crystallography |
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| Axial Ratios: |
a:c = 1:1.47845 | ||
| Cell Dimensions: |
a = 8.82, c = 13.04, Z = 8; V = 1,014.41 Den(Calc)= 5.14 | ||
| Crystal System: |
Tetragonal - Ditetragonal Dipyramidal H-M Symbol (4/m 2/m 2/m) Space Group: P 41/nbc | ||
| X Ray Diffraction: |
By Intensity(I/Io): 4.42(1), 3.38(0.8), 3.12(0.7), | ||
Physical Properties of Denningite |
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| Cleavage: |
{001} Perfect | ||
| Color: |
Colorless, Light green. | ||
| Density: |
5.05 | ||
| Diaphaneity: |
Transparent | ||
| Fracture: |
Conchoidal - Fractures developed in brittle materials characterized by smoothly curving surfaces, (e.g. quartz). | ||
| Hardness: |
4 - Fluorite | ||
| Luster: |
Adamantine | ||
| Streak: |
white | ||
Optical Properties of Denningite |
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| Gladstone-Dale: |
CI meas= 0.056 (Good) - where the CI = (1-KPDmeas/KC) CI calc= 0.073 (Fair) - where the CI = (1-KPDcalc/KC) KPDcalc= 0.1839,KPDmeas= 0.1871,KC= 0.1982 Ncalc = 2 - 2.02 |
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| Optical Data: |
Uniaxial (+), w=1.89, e=2, bire=0.1100. | ||
Calculated Properties of Denningite |
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| Electron Density: |
Bulk Density (Electron Density)=4.38 gm/cc note: Specific Gravity of Denningite =5.05 gm/cc. |
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| Fermion Index: |
Fermion Index = 0.05 Boson Index = 0.95 |
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| Photoelectric: |
PEDenningite = 235.24 barns/electron U=PEDenningite x rElectron Density=1,029.92 barns/cc. |
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| Radioactivity: |
GRapi = 0 (Gamma Ray American Petroleum Institute Units) Denningite is Not Radioactive |
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Denningite Classification |
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| Dana Class: |
34.04.01.01 (34)Selenites - Tellurites - Sulfites | ||
| (34.04)Dana Type | |||
| (34.04.01)Dana Group | |||
| Strunz Class: |
04.JK.30 04 - OXIDES (Hydroxides, V[5,6] vanadates, arsenites, antimonites, bismuthites, sulfites, selenites, tellurites, iodate | ||
| 04.J - Arsenites, Antimonites, Bismuthites, Sulfites, | |||
| 04.JK -Tellurites without additional anions, without H2O | |||
Other Denningite Information |
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| References: |
NAME( AntBidBlaNic5) PHYS. PROP.(Enc. of Minerals,2nd ed.,1990) OPTIC PROP.(Enc. of Minerals,2nd ed.,1990) | ||
| See Also: |
Links to other databases for Denningite : 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 15 - WWW-MINCRYST Search for Denningite using: Visit our Advertisers for Denningite : Ask about Denningite here : Print or Cut-and-Paste your Denningite Specimen Label here :
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