General Zenzenite Information Chemical Formula: |
Pb3(Fe+++,Mn+++)4Mn++++3O15 |
Composition: |
Molecular Weight = 1,222.03 gm |
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Manganese 20.68 % Mn 9.04 % Mn2O3 / 22.77 % MnO2 |
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Iron 10.51 % Fe 15.03 % Fe2O3 |
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Lead 49.17 % Pb 52.97 % PbO |
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Oxygen 19.64 % O |
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______ ______ |
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100.00 % 99.80 % = TOTAL OXIDE |
Empirical Formula: |
Pb2.9Fe3+2.3Mn3+1.4Mn4+3.2O15 |
Environment: |
Cabonate-phyllosilicate skarn rock in a metamorphosed Fe-Mn orebody. |
IMA Status: |
Approved IMA 1991 |
Locality: |
Langban, Varmland, Sweden. Link to MinDat.org Location Data. |
Name Origin: |
Named for Nile Zenzen (1883-1959), formerly Senior curator of the Swedish museum of Natural History, Stockholm, Sweden. |
Name Pronunciation: |
Zenzenite + Pronunciation |
Synonym: |
IMA1990-031 |
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Images:
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| | Zenzenite Crystallography Axial Ratios: |
a:c = 1:1.3661 |
Cell Dimensions: |
a = 10.008, c = 13.672, Z = 4; V = 1,185.93 Den(Calc)= 6.84 |
Crystal System: |
Hexagonal - Dihexagonal DipyramidalH-M Symbol (6/m 2/m 2/m) Space Group: P 63/mcm |
X Ray Diffraction: |
By Intensity(I/Io): 2.663(1), 1.687(0.8), 3.18(0.8), |
Crystal Structure:
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Mouse
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| Physical Properties of Zenzenite Cleavage: |
{0001} Indistinct |
Color: |
Black. |
Density: |
6.83 |
Diaphaneity: |
Opaque |
Habit: |
Euhedral Crystals - Occurs as well-formed crystals showing good external form. |
Hardness: |
5.7 |
Luster: |
Metallic |
Magnetism: |
Weakly magnetic |
| Optical Properties of Zenzenite Optical Data: |
Uniaxial (?). |
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NCalc= 2.61 - from Gladstone-Dale relationship (KC = 0.2347) where Ncalc=Dcalc*KC+1 |
NCalc= 2.6 - from Gladstone-Dale relationship (KC = 0.2347) where Ncalc=Dmeas*KC+1 RL Anisotrophism: |
Distinct, in shades of gray and pale brown. |
RL Bireflectance: |
Weak, visible only in oil. |
RL Color: |
Bright white. |
Reflectivity |
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| Calculated Properties of Zenzenite Electron Density: |
Bulk Density (Electron Density)=5.96 gm/cc |
note: Specific Gravity of Zenzenite =6.84 gm/cc. Fermion Index: |
Fermion Index = 0.11 |
Boson Index = 0.89 Photoelectric: |
PEZenzenite = 875.33 barns/electron |
U=PEZenzenite x rElectron Density=5,218.86 barns/cc. Radioactivity: |
GRapi = 0 (Gamma Ray American Petroleum Institute Units) |
Zenzenite is Not Radioactive | Zenzenite Classification Dana Class: |
07.05.04.01 (07)Multiple Oxides |
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(07.05)where A B X2 |
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(07.05.04)Dana Group |
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Strunz Class: |
04.CC.55 04 - OXIDES (Hydroxides, V[5,6] vanadates, arsenites, antimonites, bismuthites, sulfites, selenites, tellurites, iodate |
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04.C - Metal:Oxygen = 2:3, 3:5, and Similar |
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04.CC -With large and medium-sized cations |
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| Other Zenzenite Information References: |
NAME( AntBidBlaNic3) PHYS. PROP.(Am.Min.,Vol.76,p2024,1991) OPTIC PROP.(AntBidBlaNic3) |
See Also: |
Links to other databases for Zenzenite : |
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 Zenzenite using: Visit our Advertisers for Zenzenite : A Bijoux Google Search for ZenzeniteAdam's Minerals Google Search for Zenzenite Cape Minerals Google Search for Zenzenite Dakota Matrix Minerals Google Search for Zenzenite Excalibur Mineral Corp. Google Search for Zenzenite Exceptional Minerals Google Search for Zenzenite John Betts Fine Minerals Search for Zenzenite McDougall Minerals Google Search for Zenzenite Mineral News Website Link Rock and Mineral Shows Google Search for Zenzenite Weinrich Minerals, Inc. Google Search for Zenzenite Ask about Zenzenite here : Print or Cut-and-Paste your Zenzenite Specimen Label here :
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