Uvanite Mineral Data

General Uvanite Information

Chemical Formula:

U++++++2V+++++6O21•15(H2O)

Composition:

Molecular Weight = 1,387.92 gm

Uranium 34.30 % U 41.22 % UO₃

Vanadium 22.02 % V 39.31 % V₂O₅

Hydrogen 2.18 % H 19.47 % H₂O

Oxygen 41.50 % O

______ ______

100.00 % 100.00 % = TOTAL OXIDE

Empirical Formula:

U₂V⁵⁺₆O₂₁•15(H₂O)

IMA Status:

Valid Species (Pre-IMA) 1914

Locality:

Temple Rock, Emery County, Utah, USA. Link to MinDat.org Location Data.

Name Origin:

Named for the composition (U, Vanadium)..

Name Pronunciation:

Uvanite

Uvanite Image

Images:

Uvanite

Comments: Yellowish brown uvanite coating on sandstone.
Location: Temple Rock, Emery County, Utah, USA. Scale: See Photo.
© Jeff Weissman / Photographic Guide to Mineral Species

Uvanite Crystallography

Crystal System:

OrthorhombicSpace Group: Unk

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

By Intensity(I/I_o): 2.94(1), 1.71(0.9), 2.24(0.8),

Physical Properties of Uvanite

Cleavage:

{???} Good, {???} Good

Color:

Brownish yellow.

Habit:

Granular - Generally occurs as anhedral to subhedral crystals in matrix.

Luminescence:

Non-fluorescent.

Magnetism:

Nonmagnetic

Streak:

light yellow

Optical Properties of Uvanite

Optical Data:

Biaxial (+), a=1.817, b=1.879, g=2.057, bire=0.2400

Pleochroism (x):

light brown.

Pleochroism (y):

dark brown.

Pleochroism (z):

yellow green.

Calculated Properties of Uvanite

Fermion Index:

Fermion Index = 0.0032226159
Boson Index = 0.9967773841

Photoelectric:

PE_Uvanite= 848.25 barns/electron
U=PE_Uvanite x r_electron= . barns/cc.

Radioactivity:

GRapi = 2,696,326.00 (Gamma Ray American Petroleum Institute Units)
Concentration of Uvanite per GRapi unit = 370.88 (PPB)

Uvanite is Radioactive as defined in 49 CFR 173.403. Greater than 70 Bq / gram.

Estimated Maximum U.S. Postal Shipping Size (10 mRem/hr limit, Unshielded 10 cm box) 11.28 ± 2.82 grams of pure Uvanite .
Estimated Maximum U.S. Postal Shipping Size (10 mRem/hr limit, Unshielded 100 cm box) 1128.1 ±282.02 grams of pure Uvanite .

**Estimated Radioactivity from Uvanite** - very strong
Specimen Size Weight/Volume (Sphere) *	Calculated Activity Becquerels (Bq)	Calculated Activity Curies (Ci)	Estimated Activity GR(api)	Estimated Exposure (mRem**)/hr If Held in Hand For One Hour
1000 gm	61,397,010	1.66E-03	2,696,326.00	886.46
100 gm	6,139,701	1.66E-04	269,632.60	88.65
10 gm	613,970	1.66E-05	26,963.26	8.86
1 gm	61,397	1.66E-06	2,696.33	0.89
0.1 gm	6,140	1.66E-07	269.63	0.09
0.01 gm	614	1.66E-08	26.96	0.01
0.001 gm	61	1.66E-09	2.70	0.00

Weight of pure Uvanite in grams (gm).*
Goverment Estimate of Average Annual Exposure ( 360 mRem) **
Note: 10 microsieverts/hr = 1 mRem/hr **
Max Permissable Adult Dose 50,000 mRem/yr (hands), 15,000 mRem/yr (eyes)
Lethal Dose LD(50) Exposure 400,000 to 500,000 mRem

Uvanite Classification

Dana Class:

47.04.05.01 (47)Vanadium Oxysalts

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

(47.04.05)Dana Group

47.04.05.01 Uvanite U2V6O21•15(H2O) Unk Ortho

Strunz Class:

04.HB.35 04 - OXIDES (Hydroxides, V[5,6] vanadates, arsenites, antimonites, bismuthites, sulfites, selenites, tellurites, iodate

04.H - V[5,6] Vanadates

04.HB -Uranyl Sorovanadates

04.HB.35 Uvanite U2V6O21•15(H2O) Unk Ortho

Other Uvanite Information

References:

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

See Also:

Links to other databases for Uvanite :
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
15 - Uranium Minerals

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Ask about Uvanite here :
Ask-A-Mineralogist from the Mineralogical Society of America
Mindat.org's Discussion Groups
Original Rockhounds Discussion Group
Rockhounds Discussion Group on Yahoo Groups
Mineral Discussion Forum from Fabre Minerals - also available in Español

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

Uvanite

U++++++2V+++++6O21•15(H2O)
Dana No: 47.04.05.01 Strunz No: 04.HB.35
Locality:

Notes: