Rauvite Mineral Data

[Newest Minerals] [Equipment] [Analytical Services] [About Us] [Mineral Gallery] [eBay Store]
See Also: [Diamond Crystals] [Mineral News] [Hudson Institute] [Minerals on CDROM]
Rare Minerals, Meteorites, Equipment and Analytical Services
Excalibur Mineral Company, World leaders in the supply of rare species
Serving the scientific and collector communities since 1974

General Rauvite Information

Chemical Formula:

Ca(UO2)2V+++++10O28•16(H2O)

Composition:

Molecular Weight = 1,825.78 gm

Calcium 2.20 % Ca 3.07 % CaO

Uranium 26.07 % U 29.58 % UO₂

Vanadium 27.90 % V 49.81 % V₂O₅

Hydrogen 1.77 % H 15.79 % H₂O

Oxygen 42.06 % O

______ ______

100.00 % 98.25 % = TOTAL OXIDE

Empirical Formula:

Ca(UO₂)₂V⁵⁺₁₀O₂₈•16(H₂O)

Environment:

Oxidized zones of U-V ores in Colorado Plateau-type deposits.

IMA Status:

Valid Species (Pre-IMA) 1922

Locality:

Flat Top Mesa, San Rafael District, Emery County, Utah, USA. Link to MinDat.org Location Data.

Name Origin:

Named for the composition, RAdium, Uranium, and Vanadium.

Name Pronunciation:

Rauvite

Rauvite Image

Images:

Rauvite

Comments: Irregular grains of dark-colored rauvite in matrix.
Location: Monument No. 2 Mine, Monument Valley, Apache County, Arizona, USA. Scale: Picture size 2.5 mm.
© Paul M. Schumacher

Images:

Rauvite

Comments: Brownish-yellow scaly rauvite on sandstone.
Location: Monument Valley, Apache County, Arizona, USA. Scale: See Photo.
© Jeff Weissman / Photographic Guide to Mineral Species

Rauvite Crystallography

Crystal System:

Amorphous- No Crystals

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

By Intensity(I/I_o): 10.7(1), 2.95(0.5), 3.49(0.4),

Physical Properties of Rauvite

Cleavage:

None

Color:

Bluish black, Brown red, Orange, Purple red.

Density:

2.92

Diaphaneity:

Semitransparent

Fracture:

Brittle - Sectile - Brittle fracture with slightly sectile shavings possible.

Habit:

Compact - Occurs as a compact mass.

Habit:

Waxy - Looks like candle wax.

Luminescence:

Non-fluorescent.

Luster:

Adamantine - Waxy

Magnetism:

Nonmagnetic

Streak:

brown

Optical Properties of Rauvite

Gladstone-Dale:

CI meas= -0.21 (Poor) - where the CI = (1-KPDmeas/KC)
KPDmeas= 0.3134,KC= 0.2591
Ncalc = 1.76

Optical Data:

Biaxial (-), a=1.88, g=1.95, bire=0.0700

Calculated Properties of Rauvite

Electron Density:

Bulk Density (Electron Density)=2.72 gm/cc
note: Specific Gravity of Rauvite =2.92 gm/cc.

Fermion Index:

Fermion Index = 0.0028090648
Boson Index = 0.9971909352

Photoelectric:

PE_Rauvite= 641.18 barns/electron
U=PE_Rauvite x r_electron=1,743.27 barns/cc.

Radioactivity:

GRapi = 2,069,413.69 (Gamma Ray American Petroleum Institute Units)
Concentration of Rauvite per GRapi unit = 483.23 (PPB)

Rauvite 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) 14.70 ± 3.67 grams of pure Rauvite .
Estimated Maximum U.S. Postal Shipping Size (10 mRem/hr limit, Unshielded 100 cm box) 1469.8 ±367.46 grams of pure Rauvite .

**Estimated Radioactivity from Rauvite** - 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 / 8.68 cm	46,672,945	1.26E-03	2,069,413.69	680.36
100 gm / 4.03 cm	4,667,295	1.26E-04	206,941.37	68.04
10 gm / 1.87 cm	466,729	1.26E-05	20,694.14	6.80
1 gm / 8.68 mm	46,673	1.26E-06	2,069.41	0.68
0.1 gm / 4.03 mm	4,667	1.26E-07	206.94	0.07
0.01 gm / 1.87 mm	467	1.26E-08	20.69	0.01
0.001 gm / 0.87 mm	47	1.26E-09	2.07	0.00

Weight of pure Rauvite in grams (gm) and Calculated Diameter of a Sphere with a Density of 2.92 gm/cc.*
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

Rauvite Classification

Dana Class:

47.04.04.01 (47)Vanadium Oxysalts

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

(47.04.04)Dana Group

47.04.04.01 Rauvite Ca(UO2)2V10O28•16(H2O) None

Strunz Class:

04.HB.40 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.40 Rauvite Ca(UO2)2V10O28•16(H2O) None

Other Rauvite Information

References:

NAME( AntBidBlaNic4) PHYS. PROP.(Dana) OPTIC PROP.(AntBidBlaNic4)

See Also:

Links to other databases for Rauvite :
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
15 - Uranium Minerals

Search for Rauvite using:

[ALTAVISTA] [AOL] [All-The-Web] [HotBot] [Ixquick] [MAMMA] [MSN.COM] [Netscape] [Scirus] [Teoma] [Wikipedia] [YAHOO]

Visit our Advertisers for Rauvite :

AA Mineral Specimens

B & L Fine Minerals

Crystalarium.com

Dan Weinrich Fine Minerals

Dan Weinrich Auctions

Dakota Matrix

Desert Winds Gems and Minerals

John Betts Fine Minerals

Mason's Minerals

Mineral News

Mineral of the Month Club

Wrights Rock Shop

Translate Rauvite Mineral Data :

Ask about Rauvite 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 Rauvite Specimen Label here :

Rauvite

Ca(UO2)2V+++++10O28•16(H2O)
Dana No: 47.04.04.01 Strunz No: 04.HB.40
Locality:

Notes: