General Muthmannite Information![]() AgAuTe2 |
![]() Molecular Weight = 556.88 gm |
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Silver 19.18 % Ag |
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Tellurium 46.51 % Te |
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Gold 34.31 % Au |
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100.00 % |
![]() Au0.97Ag0.99Te2.03 |
![]() In close intergrowths with other tellurides, especially krennerite, in epithermal hydorthermal veins and in ores enriched by secondary processes. |
![]() Valid Species (Pre-IMA) 1911 |
![]() Sacaramb, Romania. Link to MinDat.org Location Data. |
![]() Named for Friedrich W. Muthmann (1861-1913), German chemist and crystallographer. |
![]() Muthmannite + Pronunciation |
![]() | | Muthmannite Image
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Muthmannite Crystallography![]() a:b:c =1.1595:1:1.6829 |
![]() a = 5.124, b = 4.419, c = 7.437, Z = 2; beta = 89.96° V = 168.40 Den(Calc)= 10.98 |
![]() Monoclinic - PrismaticH-M Symbol (2/m) Space Group: P 2/m |
![]() By Intensity(I/Io): 3.03(1), 2.11(0.8), 2.94(0.5),1.04(0.3), 1.32(0.3), 1.7(0.3), 1.95(0.3), 5.09(0.2), |
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| Physical Properties of Muthmannite![]() {???} Perfect |
![]() Blackish yellow, Bronzy yellow, Grayish white. |
![]() Opaque |
![]() Massive - Uniformly indistinguishable crystals forming large masses. |
![]() Tabular - Form dimensions are thin in one direction. |
![]() 2.5 - Finger Nail |
![]() Non-fluorescent. |
![]() Metallic |
![]() Nonmagnetic |
![]() black |
| Optical Properties of Muthmannite![]() Distinct. |
![]() Very low. |
![]() Grayish white with no internal reflections. |
![]() Very low. |
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| Calculated Properties of Muthmannite![]() Bulk Density (Electron Density)=9.02 gm/cc |
note: Specific Gravity of Muthmannite =11.0 gm/cc. ![]() Fermion Index = 0.03 |
Boson Index = 0.97 ![]() PEMuthmannite = 795.07 barns/electron |
U=PEMuthmannite x rElectron Density=7,171.06 barns/cc. ![]() GRapi = 0 (Gamma Ray American Petroleum Institute Units) |
Muthmannite is Not Radioactive | Muthmannite Classification![]() 02.08.25.01 (02)Sulfides - Including Selenides and Tellurides |
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(02.08)where Am Bn Xp, with (m+n):p=1:1 |
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(02.08.25)Dana Group |
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![]() 02.CB.85 02 - SULFIDES and SULFOSALTS (sulfides, selenides, tellurides; arsenides, antimonides, bismuthides; sulfarsenites, sulf |
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02.C - Metal Sulfides, M:S = 1:1 (and similar) |
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02.CB -With Zn, Fe, Cu, Ag, Au, etc |
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| Other Muthmannite Information![]() NAME( Dana8) PHYS. PROP.(Dana, AmMin, 89:1505) OPTIC PROP.(AmMin, 89:1505) |
![]() Links to other databases for Muthmannite : |
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 Muthmannite using: Visit our Advertisers for Muthmannite : A Bijoux Google Search for MuthmanniteAdam's Minerals Google Search for Muthmannite Cape Minerals Google Search for Muthmannite Dakota Matrix Minerals Google Search for Muthmannite Excalibur Mineral Corp. Google Search for Muthmannite Exceptional Minerals Google Search for Muthmannite John Betts Fine Minerals Search for Muthmannite McDougall Minerals Google Search for Muthmannite Mineral News Website Link Rock and Mineral Shows Google Search for Muthmannite Weinrich Minerals, Inc. Google Search for Muthmannite Ask about Muthmannite here : Print or Cut-and-Paste your Muthmannite Specimen Label here :
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