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General Bystromite Information |
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 Chemical Formula: |
MgSb2O6 | ||
| Composition: |
Molecular Weight = 363.80 gm | ||
| Magnesium 6.68 % Mg 11.08 % MgO | |||
| Antimony 66.93 % Sb 88.92 % Sb2O5 | |||
| Oxygen 26.39 % O | |||
| ______ ______ | |||
| 100.00 % 100.00 % = TOTAL OXIDE | |||
| Empirical Formula: |
MgSb2O6 | ||
| Environment: |
In quartz veins in an oxidized antimony deposit. | ||
| IMA Status: |
Valid Species (Pre-IMA) 1952 | ||
| Locality: |
La Fortuna and San Jose mines, El Antimonio, 27 km southwest of Agua Prieta, Sonora, Mexico. Link to MinDat.org Location Data. | ||
| Name Origin: |
Named for Anders Bystrom (1916-1956), Swedish crystal chemist, who made a structural analysis of the synthetic compound. | ||
| Name Pronunciation: |
Bystromite + Pronunciation  |
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| Synonym: |
Bystroemite | ||
| ICSD 40345 | |||
| PDF 37-1470 | |||
Bystromite Image | |||
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Images:
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Bystromite Crystallography |
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| Axial Ratios: |
a:c = 1:1.96794 | ||
| Cell Dimensions: |
a = 4.68, c = 9.21, Z = 2; V = 201.72 Den(Calc)= 5.99 | ||
| Crystal System: |
Tetragonal - Ditetragonal DipyramidalH-M Symbol (4/m 2/m 2/m) Space Group: P 41/mnm | ||
| X Ray Diffraction: |
By Intensity(I/Io): 3.32(1), 1.73(0.9), 2.57(0.9), | ||
Physical Properties of Bystromite |
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| Color: |
Blue. | ||
| Density: |
5.7 | ||
| Hardness: |
7 - Quartz | ||
Optical Properties of Bystromite |
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| Gladstone-Dale: |
CI meas= 0.019 (Superior) - where the CI = (1-KPDmeas/KC) CI calc= 0.066 (Fair) - where the CI = (1-KPDcalc/KC) KPDcalc= 0.1477,KPDmeas= 0.1553,KC= 0.1582 Ncalc = 1.9 - 1.95 |
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| Optical Data: |
Uniaxial (?), b=1.86-1.91. | ||
Calculated Properties of Bystromite |
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| Electron Density: |
Bulk Density (Electron Density)=5.08 gm/cc note: Specific Gravity of Bystromite =5.70 gm/cc. |
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| Fermion Index: |
Fermion Index = 0.0068075007 Boson Index = 0.9931924993 |
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| Photoelectric: |
PEBystromite = 221.22 barns/electron U=PEBystromite x rElectron Density=1,122.98 barns/cc. |
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| Radioactivity: |
GRapi = 0 (Gamma Ray American Petroleum Institute Units) Bystromite is Not Radioactive |
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Bystromite Classification |
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| Dana Class: |
44.02.01.01 (44)Antimonates | ||
| (44.02)A (X2 O6) | |||
| (44.02.01)Bystromite Group | |||
| Strunz Class: |
04.DB.10 04 - OXIDES (Hydroxides, V[5,6] vanadates, arsenites, antimonites, bismuthites, sulfites, selenites, tellurites, iodate | ||
| 04.D - Metal:Oxygen = 1:2 and similar | |||
| 04.DB -With medium-sized cations; chains of edge-sharing octahedra | |||
Other Bystromite Information |
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| References: |
NAME( AntBidBlaNic4) PHYS. PROP.(Enc. of Minerals,2nd ed.,1990) OPTIC PROP.(Enc. of Minerals,2nd ed.,1990) | ||
| See Also: |
Links to other databases for Bystromite : 1 - Am. Min. Crystal Structure Database 2 - Athena 3 - GeoScienceWorld 4 - Google Images 5 - Google Scholar 6 - Handbook of Mineralogy (MinSocAm) 7 - Handbook of Mineralogy (UofA) 8 - MinDAT 9 - Mineralienatlas (Deutsch) 10 - Online Mineral Museum 11 - QUT Mineral Atlas 12 - Ruff.Info 13 - WWW-MINCRYST Search for Bystromite using: Visit our Advertisers for Bystromite : A Bijoux Google Search for BystromiteAdam's Minerals Google Search for Bystromite Cape Minerals Google Search for Bystromite Dakota Matrix Minerals Google Search for Bystromite Excalibur Mineral Corp. Google Search for Bystromite Exceptional Minerals Google Search for Bystromite John Betts Fine Minerals Search for Bystromite McDougall Minerals Google Search for Bystromite Mineral News Website Link Rock and Mineral Shows Google Search for Bystromite Weinrich Minerals, Inc. Google Search for Bystromite Ask about Bystromite here : Print or Cut-and-Paste your Bystromite Specimen Label here :
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