Simplotite Mineral Data

General Simplotite Information

Chemical Formula:

CaV++++4O9•5(H2O)

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

Empirical Formula:

CaV⁴⁺₄O₉•5(H₂O)

Environment:

Sedimentary U-V deposits.

IMA Status:

Valid Species (Pre-IMA) 1958

Locality:

Sundown Claim, San Miguel County, Utah, USA. Link to MinDat.org Location Data.

Name Origin:

Named for Jack R. Simplot (1909-) of the Simplot Mining Co., Boise, Idaho, USA.

Name Pronunciation:

Simplotite + Pronunciation

Simplotite Crystallography

Axial Ratios:

a:b:c =0.4929:1:0.4917

Cell Dimensions:

a = 8.39, b = 17.02, c = 8.37, Z = 4; beta = 90.42° V = 1,195.19 Den(Calc)= 2.66

Crystal System:

Monoclinic - Prismatic H-M Symbol (2/m) Space Group: A2/m

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

By Intensity(I/I_o): 8.51(1), 2.62(0.25), 3.14(0.18),

Physical Properties of Simplotite

Cleavage:

{010} Perfect

Color:

Greenish black, Dark green, Black.

Density:

2.64

Habit:

Micaceous - Platy texture with "flexible" plates.

Habit:

Platy - Sheet forms (e.g. micas).

Hardness:

1 - Talc

Luster:

Vitreous (Glassy)

Streak:

brownish black

Optical Properties of Simplotite

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

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.

Pleochroism (x):

yellow.

Pleochroism (y):

green.

Pleochroism (z):

green.

Calculated Properties of Simplotite

Electron Density:

Bulk Density (Electron Density)=2.59 gm/cc
note: Specific Gravity of Simplotite =2.64 gm/cc.

Fermion Index:

Fermion Index = 0.0014072548
Boson Index = 0.9985927452

Photoelectric:

PE_Simplotite= 9.09 barns/electron
U=PE_Simplotite x rElectron Density= 23.51 barns/cc.

Radioactivity:

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

Simplotite Classification

Dana Class:

47.04.08.01 (47)Vanadium Oxysalts

(47.04)(Hydrated Containing V++++ and V+++++)

(47.04.08)Dana Group

47.04.08.01 Simplotite CaV4O9•5(H2O) A2/m 2/m

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

References:

NAME( Dana8) PHYS. PROP.(Enc. of Minerals,2nd ed.,1990) OPTIC PROP.(Dana8)

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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Print or Cut-and-Paste your Simplotite Specimen Label here :

Simplotite

CaV++++4O9•5(H2O)
Dana No: 47.04.08.01 Strunz No: 04.HG.20
Locality:

Notes:

Dakota Matrix
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