General Emmonsite Information![]() Fe+++2Te++++3O9•2(H2O) |
![]() Molecular Weight = 674.52 gm |
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Iron 16.56 % Fe 23.67 % Fe2O3 |
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Tellurium 56.75 % Te 70.98 % TeO2 |
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Hydrogen 0.60 % H 5.34 % H2O |
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Oxygen 26.09 % O |
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100.00 % 100.00 % = TOTAL OXIDE |
![]() Fe3+2Te3O9•2(H2O) |
![]() Secondary mineral formed by oxidation of Tellurium bearing minerals. |
![]() Valid Species (Pre-IMA) 1885 |
![]() Tombstone, Tombstone District, Cochise County, Arizona, USA Link to MinDat.org Location Data. |
![]() Named for S. F. Emmons |
![]() Emmonsite + Pronunciation |
![]() ![]() Durdenite |
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ICSD 9259 |
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PDF 7-404 |
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Emmonsite Crystallography![]() a:b:c =0.982:1:0.9437 |
![]() a = 7.874, b = 8.018, c = 7.567, Z = 2; alpha = 95.6°, beta = 94.3°, gamma = 84.7° V = 472.09 Den(Calc)= 4.74 |
![]() Triclinic - PinacoidalH-M Symbol ( 1) Space Group: P1 |
![]() By Intensity(I/Io): 3.14(1), 2.52(0.9), 2.87(0.9), |
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| Physical Properties of Emmonsite![]() {010} Perfect |
![]() Yellow, Greenish yellow. |
![]() 4.52 - 4.53, Average = 4.52 |
![]() Transparent to Translucent |
![]() Mammillary - Larger "breast-like" rounded forms resembling botryoidal (e.g. malachite). |
![]() 2-2.5 - Gypsum-Finger Nail |
![]() Non-fluorescent. |
![]() Vitreous - Dull |
| Optical Properties of Emmonsite![]() CI meas= 0.011 (Superior) - where the CI = (1-KPDmeas/KC) |
CI calc= 0.055 (Good) - where the CI = (1-KPDcalc/KC) KPDcalc= 0.2224,KPDmeas= 0.2329,KC= 0.2354 Ncalc = 2.06 - 2.12 ![]() Biaxial (-), a=1.962, b=2.09, g=2.1-2.12, bire=0.1380-0.1580, 2V(Calc)=28-48, 2V(Meas)=23. Dispersion relatively strong. |
| Calculated Properties of Emmonsite![]() Bulk Density (Electron Density)=4.03 gm/cc |
note: Specific Gravity of Emmonsite =4.53 gm/cc. ![]() Fermion Index = 0.04 |
Boson Index = 0.96 ![]() PEEmmonsite = 201.19 barns/electron |
U=PEEmmonsite x rElectron Density= 809.82 barns/cc. ![]() GRapi = 0 (Gamma Ray American Petroleum Institute Units) |
Emmonsite is Not Radioactive | Emmonsite Classification![]() 34.03.03.01 (34)Selenites - Tellurites - Sulfites |
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(34.03)Dana Type |
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(34.03.03)Dana Group |
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![]() 04.JM.10 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.JM -Tellurites without additional anions, with H2O |
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| Other Emmonsite Information![]() PHYS. PROP.(Enc. of Minerals,2nd ed.,1990) OPTIC PROP.(Enc. of Minerals,2nd ed.,1990) |
![]() Links to other databases for Emmonsite : |
1 - Am. Min. Crystal Structure Database 2 - Amethyst Galleries' Mineral Gallery 3 - Athena 4 - EUROmin Project 5 - Ecole des Mines de Paris 6 - GeoScienceWorld 7 - Glendale Community College 8 - Google Images 9 - Google Scholar 10 - Handbook of Mineralogy (MinSocAm) 11 - Handbook of Mineralogy (UofA) 12 - MinDAT 13 - Mineralienatlas (Deutsch) 14 - Online Mineral Museum 15 - QUT Mineral Atlas 16 - Ruff.Info Search for Emmonsite using: Visit our Advertisers for Emmonsite : A Bijoux Google Search for EmmonsiteAdam's Minerals Google Search for Emmonsite Cape Minerals Google Search for Emmonsite Dakota Matrix Minerals Google Search for Emmonsite Excalibur Mineral Corp. Google Search for Emmonsite Exceptional Minerals Google Search for Emmonsite John Betts Fine Minerals Search for Emmonsite McDougall Minerals Google Search for Emmonsite Mineral News Website Link Rock and Mineral Shows Google Search for Emmonsite Weinrich Minerals, Inc. Google Search for Emmonsite Ask about Emmonsite here : Print or Cut-and-Paste your Emmonsite Specimen Label here :
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