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Orthominasragrite Mineral Data
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General Orthominasragrite Information
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 Chemical Formula: |
VO(SO4)•5(H2O) |
| Composition: |
Molecular Weight = 253.08 gm |
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Vanadium 20.13 % V 35.93 % V2O5 |
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Hydrogen 3.98 % H 35.59 % H2O |
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Sulfur 12.67 % S 31.64 % SO3 |
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Oxygen 63.22 % O |
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______ ______ |
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100.00 % 103.16 % = TOTAL OXIDE |
| Empirical Formula: |
V5+O(SO4)(H2O)5 |
| Environment: |
Secondary mineral in sediment-hosted uranium-vanadium ore deposits. |
| IMA Status: |
Approved IMA 2000 (Dana # Added) |
| Locality: |
Triassic Shinarump conglomerate at the North Mesa Mina group, Emery County, Utah, USA. Link to MinDat.org Location Data. |
| Name Origin: |
Named for the polymorphic relationship to minasragrite. |
| Synonym: |
IMA2000-018 |
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IMA2001-040 |
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Orthominasragrite Image |
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Images:
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Orthominasragrite Crystallography
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| Axial Ratios: |
a:b:c =0.7763:1:0.6653 |
| Cell Dimensions: |
a = 7.246, b = 9.333, c = 6.21, Z = 2; V = 419.96 Den(Calc)= 2.00 |
| Crystal System: |
Orthorhombic - Pyramidal H-M Symbol (mm2) Space Group: P mn21 |
| X Ray Diffraction: |
By Intensity(I/Io): 4.699(1)(101,020), 3.322(0.5)(121), 2.865(0.4)(220),2.602(0.3)(221,131,022), 2.03(0.2), 2.363(0.2), 3.734(0.2), |
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Physical Properties of Orthominasragrite
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| Cleavage: |
None |
| Color: |
Bright blue, Pale blue. |
| Diaphaneity: |
Translucent |
| Habit: |
Encrustations - Forms crust-like aggregates on matrix. |
| Hardness: |
1 - Talc |
| Luster: |
Vitreous (Glassy) |
| Streak: |
pale blue |
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Optical Properties of Orthominasragrite
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| Gladstone-Dale: |
CI calc= 0.11 (Poor) - where the CI = (1-KPDcalc/KC)
KPDcalc= 0.2662,KC= 0.2992
Ncalc = 1.6 |
| Optical Data: |
Biaxial (-), a=1.529, b=1.534, g=1.534, bire=0.0050 |
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Calculated Properties of Orthominasragrite
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| Electron Density: |
Bulk Density (Electron Density)=2.04 gm/cc
note: Specific Gravity of Orthominasragrite =2.00 gm/cc.
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| Fermion Index: |
Fermion Index = 0.0017629058
Boson Index = 0.9982370942 |
| Photoelectric: |
PEOrthominasragrite = 4.51 barns/electron
U=PEOrthominasragrite x rElectron Density= 9.19 barns/cc.
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| Radioactivity: |
GRapi = 0 (Gamma Ray American Petroleum Institute Units)
Orthominasragrite is Not Radioactive |
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Orthominasragrite Classification
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| Dana Class: |
29.06.13.02 (29)Hydrated Acid and Sulfates |
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(29.06)where A XO4 � x(H2O) |
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(29.06.13)Minasragrite Group (Orthorhombic) |
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29.06.13.01 Stanleyite (VO)SO4•6(H2O) Unk Ortho |
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29.06.13.02 Orthominasragrite! VO(SO4)•5(H2O) P mn21 mm2 |
| Strunz Class: |
07.DB.20 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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07.DB.20 Minasragrite VO(SO4)•5(H2O) P 21/a 2/m |
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07.DB.20 Orthominasragrite! VO(SO4)•5(H2O) P mn21 mm2 |
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07.DB.20 Anorthominasragrite! VO(SO4)(H2O)5 P1 1 |
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Other Orthominasragrite Information
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| References: |
NAME( AmMin, vol 87, p 997) PHYS. PROP.(AmMin, vol 87, p 997) OPTIC PROP.(AmMin, vol 87, p 997) |
| See Also: |
Links to other databases for Orthominasragrite :
1 - Am. Min. Crystal Structure Database
2 - Athena
3 - GeoScienceWorld
4 - Google Images
5 - Google Scholar
6 - Handbook of Mineralogy (MinSocAm)
7 - MinDAT
8 - Mineralienatlas (Deutsch)
9 - Online Mineral Museum
10 - QUT Mineral Atlas
11 - Ruff.Info
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Print or Cut-and-Paste your Orthominasragrite Specimen Label here :
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Orthominasragrite
VO(SO4)•5(H2O)
Dana No: 29.06.13.02 Strunz No: 07.DB.20
Locality:
Notes:
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