General Bobjonesite Information Chemical Formula: |
VO(SO4)(H2O)3 |
Composition: |
Molecular Weight = 217.05 gm |
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Vanadium 23.47 % V 41.90 % V2O5 |
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Hydrogen 2.79 % H 24.90 % H2O |
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Sulfur 14.77 % S 36.89 % SO3 |
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Oxygen 58.97 % O |
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______ ______ |
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100.00 % 103.69 % = TOTAL OXIDE |
Empirical Formula: |
V5+O(SO4)(H2O)3 |
Environment: |
Silicified log in the Triassic Chinle Formation (Shinarump Conglomerate Member). Unstable in all but the driest atmosphere. |
IMA Status: |
Approved IMA 2001 (Dana # Added) |
Locality: |
Temple Mountain, Emery County, Utah, USA. Link to MinDat.org Location Data. |
Name Origin: |
Named for Bob Jones (1926-), of Cave Creek, Arizona, USA. |
Synonym: |
IMA2000-045 |
| | Bobjonesite Image
Images:
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Bobjonesite Crystallography Axial Ratios: |
a:b:c =0.9976:1:1.6272 |
Cell Dimensions: |
a = 7.394, b = 7.4111, c = 12.0597, Z = 4; beta = 106.55° V = 633.47 Den(Calc)= 2.28 |
Crystal System: |
Monoclinic - PrismaticH-M Symbol (2/m) Space Group: P 21/m |
X Ray Diffraction: |
By Intensity(I/Io): 5.795(1)(002), 3.498(0.9)(112), 3.881(0.48)(103),5.408(0.37)(101), 4.571(0.2)(012), 6.255(0.11)(011), 6.962(0.11)(101), 3.423(0.1)(013), |
Crystal Structure:
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Mouse
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| Physical Properties of Bobjonesite Cleavage: |
None |
Color: |
Pale blue, Bright blue. |
Diaphaneity: |
Transparent |
Habit: |
Encrustations - Forms crust-like aggregates on matrix. |
Habit: |
Water Soluble - Water soluble mineral. |
Hardness: |
1 - Talc |
Luster: |
Vitreous (Glassy) |
Streak: |
pale blue |
| Optical Properties of Bobjonesite Gladstone-Dale: |
CI calc= 0.155 (Poor) - where the CI = (1-KPDcalc/KC) |
KPDcalc= 0.2471,KC= 0.2924 Ncalc = 1.67 Optical Data: |
Biaxial (+), a=1.555, b=1.561, g=1.574, bire=0.0190 |
| Calculated Properties of Bobjonesite Electron Density: |
Bulk Density (Electron Density)=2.29 gm/cc |
note: Specific Gravity of Bobjonesite =2.28 gm/cc. Fermion Index: |
Fermion Index = 0.0019819992 |
Boson Index = 0.9980180008 Photoelectric: |
PEBobjonesite = 5.27 barns/electron |
U=PEBobjonesite x rElectron Density= 12.06 barns/cc. Radioactivity: |
GRapi = 0 (Gamma Ray American Petroleum Institute Units) |
Bobjonesite is Not Radioactive | Bobjonesite Classification Dana Class: |
29.06.12.02 (29)Hydrated Acid and Sulfates |
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(29.06)where A XO4 · x(H2O) |
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(29.06.12)Minasragrite Group (Monclinic and Triclinic) |
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Strunz Class: |
07.DB.25 07 - SULFATES (SELENATES, TELLURATES) |
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07.D - Sulfates (selenates, etc.) with additional anions, with H2O |
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07.DB -With only medium-sized cations; insular octahedra and finite groups |
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| Other Bobjonesite Information References: |
NAME( CanMin, v 41, p 83) PHYS. PROP.(CanMin, v 41, p 83) OPTIC PROP.(CanMin, v 41, p 83) |
See Also: |
Links to other databases for Bobjonesite : |
1 - Am. Min. Crystal Structure Database 2 - Athena 3 - GeoScienceWorld 4 - Google Images 5 - Google Scholar 6 - MinDAT 7 - Mineralienatlas (Deutsch) 8 - Online Mineral Museum 9 - QUT Mineral Atlas 10 - Ruff.Info Search for Bobjonesite using: Visit our Advertisers for Bobjonesite : A Bijoux Google Search for BobjonesiteAdam's Minerals Google Search for Bobjonesite Cape Minerals Google Search for Bobjonesite Dakota Matrix Minerals Google Search for Bobjonesite Excalibur Mineral Corp. Google Search for Bobjonesite Exceptional Minerals Google Search for Bobjonesite John Betts Fine Minerals Search for Bobjonesite McDougall Minerals Google Search for Bobjonesite Mineral News Website Link Rock and Mineral Shows Google Search for Bobjonesite Weinrich Minerals, Inc. Google Search for Bobjonesite Ask about Bobjonesite here : Print or Cut-and-Paste your Bobjonesite Specimen Label here :
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