Uvanite Mineral Data

Uvanite Mineral Data +

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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)..

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 = 0.00322
Boson Index = 0.99678

Photoelectric:

PE_Uvanite= 848.26 barns/electron
U=PE_Uvanite x r_electron= . barns/cc.

Radioactivity:

GRapi = 2,696,324.88 (Gamma Ray American Petroleum Institute Units)

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 Bequerols (Bq)	Calculated Activity Curies (Ci)	Estimated Activity GR(api)	Estimated Exposure (mRem**)/hr If Held in Hand For One Hour
1000 gm	61,397,000	1.66E-03	2,696,324.88	886.46
100 gm	6,139,700	1.66E-04	269,632.49	88.65
10 gm	613,970	1.66E-05	26,963.25	8.86
1 gm	61,397	1.66E-06	2,696.32	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:

47.4.5.1 (47)Vanadium Oxysalts

(47.4)(Hydrated Containing V++++ and V+++++)

(47.4.5)Dana Group

47.4.5.1 Uvanite U2V6O21·15(H2O) Unk Ortho

Strunz Class:

IV/G.05-20 IV - Oxides

IV/G - Vanadiumoxides (with V4+/5+), Appendix to vanadates: Unclassified vanadates

IV/G.05 - Unclassified vanadates, Namibite

IV/G.05-10 Rauvite Ca(UO2)2V10O28·16(H2O) None

IV/G.05-20 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 -Google Images 5 -Google Scholar 6 -Handbook of Mineralogy (UofA) 7 -MinDAT 8 -MinMax(Deutsch) 9 -MinMax(English) 10 -Mineralienatlas (Deutsch) 11 -QUT Mineral Atlas 12 - Uranium Minerals 13 -École des Mines de Paris

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Translate Uvanite Mineral Data :

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

Uvanite

U++++++2V+++++6O21·15(H2O)
Dana No: 47.4.5.1 Strunz No: IV/G.05-20
Locality:

Notes: