Orthominasragrite Mineral Data

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General Orthominasragrite Information

Chemical Formula:

VO(SO4)•5(H2O)

Composition:

Molecular Weight = 253.08 gm

Vanadium 20.13 % V 35.93 % V₂O₅

Hydrogen 3.98 % H 35.59 % H₂O

Sulfur 12.67 % S 31.64 % SO₃

Oxygen 63.22 % O

______ ______

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

IMA2001-040

Orthominasragrite Image

Images:

Orthominasragrite

Comments: Dark blue, spherical aggregate of orthominasragrite.
Location: Temple Mountain, Emery Co., Utah, USA. Scale: Picture size 1 mm.
© Thomas Witzke / Abraxas-Verlag

Orthominasragrite Crystallography

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 - PyramidalH-M Symbol (mm2) Space Group: P mn2₁

$Help on X Ray Diffraction:$ X Ray Diffraction:

By Intensity(I/I_o): 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),

Crystal Structure:

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Hawthorne F C , Schindler M , Grice J D , Haynes P , The Canadian Mineralogist , 39 (2001) p.1325-1331, Orthominasragrite, VO(SO4)(H2O)5, a new mineral species from Temple, Mountain, Emery county, Utah, U.S.A., Locality: Temple Mountain, Emery county, Utah, USA

Physical Properties of Orthominasragrite

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

Optical Properties of Orthominasragrite

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

Calculated Properties of Orthominasragrite

Electron Density:

Bulk Density (Electron Density)=2.04 gm/cc
note: Specific Gravity of Orthominasragrite =2.00 gm/cc.

Fermion Index:

Fermion Index = 0.0017629058
Boson Index = 0.9982370942

Photoelectric:

PE_{Orthominasragrite}= 4.51 barns/electron
U=PE_{Orthominasragrite} x rElectron Density= 9.19 barns/cc.

Radioactivity:

GRapi = 0 (Gamma Ray American Petroleum Institute Units)
Orthominasragrite is Not Radioactive

Orthominasragrite Classification

Dana Class:

29.06.13.02 (29)Hydrated Acid and Sulfates

(29.06)where A XO4 · x(H2O)

(29.06.13)Minasragrite Group (Orthorhombic)

29.06.13.01 Stanleyite (VO)SO4•6(H2O) Unk Ortho

29.06.13.02 Orthominasragrite! VO(SO4)•5(H2O) P mn2₁ mm2

Strunz Class:

07.DB.20 07 - SULFATES (SELENATES, TELLURATES)

07.D - Sulfates (selenates, etc.) with additional anions, with H2O

07.DB -With only medium-sized cations; insular octahedra and finite groups

07.DB.20 Minasragrite VO(SO4)•5(H2O) P 2₁/a 2/m

07.DB.20 Orthominasragrite! VO(SO4)•5(H2O) P mn2₁ mm2

07.DB.20 Anorthominasragrite! VO(SO4)(H2O)5 P1 1

Other Orthominasragrite Information

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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Ask about Orthominasragrite here :
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Print or Cut-and-Paste your Orthominasragrite Specimen Label here :

Orthominasragrite

VO(SO4)•5(H2O)
Dana No: 29.06.13.02 Strunz No: 07.DB.20
Locality:

Notes: