General Mopungite Information Chemical Formula: |
NaSb(OH)6 |
Composition: |
Molecular Weight = 246.78 gm |
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Sodium 9.32 % Na 12.56 % Na2O |
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Antimony 49.33 % Sb 65.54 % Sb2O5 |
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Hydrogen 2.45 % H 21.90 % H2O |
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Oxygen 38.90 % O |
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100.00 % 100.00 % = TOTAL OXIDE |
Empirical Formula: |
NaSb(OH)6 |
Environment: |
Secondary mineral from stibnite. |
IMA Status: |
Approved IMA 1985 |
Locality: |
Mopung Hills, Churchill County, Nevada, USA. Link to MinDat.org Location Data. |
Name Origin: |
Named for the locality. |
Name Pronunciation: |
Mopungite + Pronunciation |
Synonym: |
ICSD 4211 |
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PDF 38-411 |
| | Mopungite Image
Images:
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Mopungite Crystallography Axial Ratios: |
a:c = 1:0.98311 |
Cell Dimensions: |
a = 7.994, c = 7.859, Z = 4; V = 502.22 Den(Calc)= 3.26 |
Crystal System: |
Tetragonal - DipyramidalH-M Symbol (4/m) Space Group: P 41/n |
X Ray Diffraction: |
By Intensity(I/Io): 4.58(1), 3.985(0.8), 1.205(0.7), |
Crystal Structure:
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Mouse
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| Physical Properties of Mopungite Cleavage: |
None |
Color: |
Colorless, Milky white. |
Density: |
3.21 |
Diaphaneity: |
Transparent to Translucent |
Habit: |
Encrustations - Forms crust-like aggregates on matrix. |
Habit: |
Pseudo Cubic - Crystals show a cubic outline. |
Habit: |
Pseudomorphous - Occurs in the form of another mineral. |
Hardness: |
3 - Calcite |
Luminescence: |
Non-fluorescent. |
Luster: |
Vitreous - Dull |
Streak: |
white |
| Optical Properties of Mopungite Gladstone-Dale: |
CI meas= 0.044 (Good) - where the CI = (1-KPDmeas/KC) |
CI calc= 0.059 (Good) - where the CI = (1-KPDcalc/KC) KPDcalc= 0.187,KPDmeas= 0.1899,KC= 0.1986 Ncalc = 1.64 - 1.65 Optical Data: |
Uniaxial (-), e=1.605, w=1.614, bire=0.0090. |
| Calculated Properties of Mopungite Electron Density: |
Bulk Density (Electron Density)=3.02 gm/cc |
note: Specific Gravity of Mopungite =3.21 gm/cc. Fermion Index: |
Fermion Index = 0.000190391 |
Boson Index = 0.999809609 Photoelectric: |
PEMopungite = 154.60 barns/electron |
U=PEMopungite x rElectron Density= 466.52 barns/cc. Radioactivity: |
GRapi = 0 (Gamma Ray American Petroleum Institute Units) |
Mopungite is Not Radioactive | Mopungite Classification Dana Class: |
06.03.07.04 (06)Hydroxides and Oxides Containing Hydroxyl |
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(06.03)with (OH)3 or (OH)6 groups |
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(06.03.07)Wickmanite group (Tetragonal: P42/n) |
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Strunz Class: |
04.FC.15 04 - OXIDES (Hydroxides, V[5,6] vanadates, arsenites, antimonites, bismuthites, sulfites, selenites, tellurites, iodate |
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04.F - Hydroxides (without V or U) |
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04.FC -Hydroxides with OH, without H2O; corner-sharing octahedra |
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| Other Mopungite Information References: |
NAME( Dana8) PHYS. PROP.(Enc. of Minerals,2nd ed.,1990) OPTIC PROP.(Enc. of Minerals,2nd ed.,1990) |
See Also: |
Links to other databases for Mopungite : |
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 Mopungite using: Visit our Advertisers for Mopungite : A Bijoux Google Search for MopungiteAdam's Minerals Google Search for Mopungite Cape Minerals Google Search for Mopungite Dakota Matrix Minerals Google Search for Mopungite Excalibur Mineral Corp. Google Search for Mopungite Exceptional Minerals Google Search for Mopungite John Betts Fine Minerals Search for Mopungite McDougall Minerals Google Search for Mopungite Mineral News Website Link Rock and Mineral Shows Google Search for Mopungite Weinrich Minerals, Inc. Google Search for Mopungite Ask about Mopungite here : Print or Cut-and-Paste your Mopungite Specimen Label here :
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