Mineralogy Database

Simplotite Mineral Data

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General Simplotite Information

Help on Chemical  Formula: Chemical Formula: CaV++++4O9•5(H2O)
Help on Composition: Composition: Molecular Weight = 477.92 gm
   Calcium    8.39 %  Ca   11.73 % CaO
   Vanadium  42.64 %  V    69.42 % VO2
   Hydrogen   2.11 %  H    18.85 % H2O
   Oxygen    46.87 %  O
            ______        ______ 
            100.00 %      100.00 % = TOTAL OXIDE
Help on Empirical Formula: Empirical Formula: CaV4+4O9•5(H2O)
Help on Environment: Environment: Sedimentary U-V deposits.
Help on IMA Status: IMA Status: Valid Species (Pre-IMA) 1958
Help on Locality: Locality: Sundown Claim, San Miguel County, Utah, USA. Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: Named for Jack R. Simplot (1909-) of the Simplot Mining Co., Boise, Idaho, USA.
Help on Name Pronunciation: Name Pronunciation: Simplotite + Pronunciation Say SIMPLOTITE

Simplotite Crystallography

Help on Axial Ratios: Axial Ratios: a:b:c =0.4929:1:0.4917
Help on Cell Dimensions: Cell Dimensions: a = 8.39, b = 17.02, c = 8.37, Z = 4; beta = 90.42° V = 1,195.19 Den(Calc)= 2.66
Help on Crystal System: Crystal System: Monoclinic - Prismatic H-M Symbol (2/m) Space Group: A2/m
Help on X Ray Diffraction: X Ray Diffraction: By Intensity(I/Io): 8.51(1), 2.62(0.25), 3.14(0.18),

Physical Properties of Simplotite

Help on Cleavage: Cleavage: {010} Perfect
Help on Color: Color: Greenish black, Dark green, Black.
Help on Density: Density: 2.64
Help on Habit: Habit: Micaceous - Platy texture with "flexible" plates.
Help on Habit: Habit: Platy - Sheet forms (e.g. micas).
Help on Hardness: Hardness: 1 - Talc
Help on Luster: Luster: Vitreous (Glassy)
Help on Streak: Streak: brownish black

Optical Properties of Simplotite

Help on Gladstone-Dale: Gladstone-Dale: CI meas= 0.217 (Poor) - where the CI = (1-KPDmeas/KC)
CI calc= 0.223 (Poor) - where the CI = (1-KPDcalc/KC)
KPDcalc= 0.2808,KPDmeas= 0.283,KC= 0.3615
Ncalc = 1.95 - 1.96
Help on Optical Data: Optical Data: Biaxial (-), a=1.705, b=1.767, g=1.769, bire=0.0640, 2V(Calc)=18, 2V(Meas)=25. Dispersion r > v weak.
Help on Pleochroism (x): Pleochroism (x): yellow.
Help on Pleochroism (y): Pleochroism (y): green.
Help on Pleochroism (z): Pleochroism (z): green.

Calculated Properties of Simplotite

Help on Electron Density: Electron Density: Bulk Density (Electron Density)=2.59 gm/cc
note: Specific Gravity of Simplotite =2.64 gm/cc.
Help on Fermion Index: Fermion Index: Fermion Index = 0.0014072548
Boson Index = 0.9985927452
Help on Photoelectric: Photoelectric: PESimplotite = 9.09 barns/electron
U=PESimplotite x rElectron Density= 23.51 barns/cc.
Help on Radioactivity: Radioactivity: GRapi = 0 (Gamma Ray American Petroleum Institute Units)
Simplotite is Not Radioactive

Simplotite Classification

Help on  Dana Class: Dana Class: (47)Vanadium Oxysalts
  (47.04)(Hydrated Containing V++++ and V+++++)
  (47.04.08)Dana Group Simplotite CaV4O9•5(H2O) A2/m 2/m
Help on  Strunz Class: Strunz Class: 04.HG.20 04 - OXIDES (Hydroxides, V[5,6] vanadates, arsenites, antimonites, bismuthites, sulfites, selenites, tellurites, iodate
  04.H - V[5,6] Vanadates
  04.HG -Unclassified V oxides
04.HG.20 Simplotite CaV4O9•5(H2O) A2/m 2/m

Other Simplotite Information

Help on References: References: NAME( Dana8) PHYS. PROP.(Enc. of Minerals,2nd ed.,1990) OPTIC PROP.(Dana8)
Help on See Also: See Also: Links to other databases for Simplotite :
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

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Dana No: Strunz No: 04.HG.20





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