Fervanite Mineral Data

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General Fervanite Information

Chemical Formula:

Fe+++4(VO4)4•5(H2O)

Composition:

Molecular Weight = 773.22 gm

Vanadium 26.35 % V 47.04 % V₂O₅

Iron 28.89 % Fe 41.31 % Fe₂O₃

Hydrogen 1.30 % H 11.65 % H₂O

Oxygen 43.45 % O

______ ______

100.00 % 100.00 % = TOTAL OXIDE

Empirical Formula:

Fe³⁺₄(VO₄)₄•5(H₂O)

Environment:

U-V deposits of the Colorado Plateau.

IMA Status:

Valid Species (Pre-IMA) 1931

Locality:

Polar Mesa, Grand County, Utah, USA. Link to MinDat.org Location Data.

Name Origin:

Named for its composition.

Name Pronunciation:

Fervanite + Pronunciation

Fervanite Image

Images:

Fervanite Hewettite

Comments: Spherical aggregate of acicular microcrystals of fervanite with blocky hewettite.
Location: Gold Quarry Mine, Carlin Trend, Eureka County, Nevada, USA. Scale: See Photo.
© Jeff Weissman / Photographic Guide to Mineral Species

Fervanite Crystallography

Crystal System:

MonoclinicSpace Group: Unk.

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

By Intensity(I/I_o): 8.79(1), 6.45(0.9), 3.22(0.8),3.15(0.7), 2.93(0.5), 2.99(0.5), 2.91(0.2), 3.29(0.2),

Physical Properties of Fervanite

Cleavage:

None

Color:

Yellow, Brown, Pale green.

Habit:

Fibrous - Crystals made up of fibers.

Luminescence:

Non-fluorescent.

Luster:

Adamantine

Streak:

yellowish brown

Optical Properties of Fervanite

Optical Data:

Biaxial (-), a=2.186, b=2.222, g=2.224, bire=0.0380, 2V(Calc)=26, 2V(Meas)=0-20. Dispersion relatively strong.

Calculated Properties of Fervanite

Fermion Index:

Fermion Index = 0.0069941554
Boson Index = 0.9930058446

Photoelectric:

PE_Fervanite= 13.74 barns/electron
U=PE_Fervanite x rElectron Density= . barns/cc.

Radioactivity:

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

Fervanite Classification

Dana Class:

47.03.04.01 (47)Vanadium Oxysalts

(47.03)(Hydrated)

(47.03.04)Dana Group

47.03.04.01 Fervanite Fe4(VO4)4•5(H2O) Unk. Mono

Strunz Class:

04.HG.05 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.05 Fervanite Fe4(VO4)4•5(H2O) Unk. Mono

Other Fervanite Information

References:

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

See Also:

Links to other databases for Fervanite :
1 - Am. Min. Crystal Structure Database
2 - Athena
3 - EUROmin Project
4 - Ecole des Mines de Paris
5 - Google Images
6 - Google Scholar
7 - Handbook of Mineralogy (MinSocAm)
8 - Handbook of Mineralogy (UofA)
9 - MinDAT
10 - MinMax(Deutsch)
11 - MinMax(English)
12 - Mineralienatlas (Deutsch)
13 - QUT Mineral Atlas
14 - Ruff.Info

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

Fervanite

Fe+++4(VO4)4•5(H2O)
Dana No: 47.03.04.01 Strunz No: 04.HG.05
Locality:

Notes: