Mineralogy Database

Rauvite Mineral Data

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General Rauvite Information

Help on Chemical  Formula: Chemical Formula: Ca(UO2)2V+++++10O28•16(H2O)
Help on Composition: 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
Help on Empirical Formula: Empirical Formula: Ca(UO2)2V5+10O28•16(H2O)
Help on Environment: Environment: Oxidized zones of U-V ores in Colorado Plateau-type deposits.
Help on IMA Status: IMA Status: Valid Species (Pre-IMA) 1922
Help on Locality: Locality: Flat Top Mesa, San Rafael District, Emery County, Utah, USA. Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: Named for the composition, RAdium, Uranium, and Vanadium.
Help on Name Pronunciation: Name Pronunciation: Rauvite Say RAUVITE
 

Rauvite Image

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  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

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  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

Help on Crystal System: Crystal System: Amorphous- No Crystals
Help on X Ray Diffraction: X Ray Diffraction: By Intensity(I/Io): 10.7(1), 2.95(0.5), 3.49(0.4),
 

Physical Properties of Rauvite

Help on Cleavage: Cleavage: None
Help on Color: Color: Bluish black, Brown red, Orange, Purple red.
Help on Density: Density: 2.92
Help on Diaphaneity: Diaphaneity: Semitransparent
Help on Fracture: Fracture: Brittle - Sectile - Brittle fracture with slightly sectile shavings possible.
Help on Habit: Habit: Compact - Occurs as a compact mass.
Help on Habit: Habit: Waxy - Looks like candle wax.
Help on Luminescence: Luminescence: Non-fluorescent.
Help on Luster: Luster: Adamantine - Waxy
Help on Magnetism: Magnetism: Nonmagnetic
Help on Streak: Streak: brown
 

Optical Properties of Rauvite

Help on Gladstone-Dale: Gladstone-Dale: CI meas= -0.21 (Poor) - where the CI = (1-KPDmeas/KC)
KPDmeas= 0.3134,KC= 0.2591
Ncalc = 1.76
Help on Optical Data: Optical Data: Biaxial (-), a=1.88, g=1.95, bire=0.0700
 

Calculated Properties of Rauvite

Help on Electron Density: Electron Density: Bulk Density (Electron Density)=2.72 gm/cc
note: Specific Gravity of Rauvite =2.92 gm/cc.
Help on Fermion Index: Fermion Index: Fermion Index = 0.0028090648
Boson Index = 0.9971909352
Help on Photoelectric: Photoelectric: PERauvite = 641.18 barns/electron
U=PERauvite x relectron=1,743.27 barns/cc.
Help on Radioactivity: 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

Help on  Dana Class: 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
Help on  Strunz Class: 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

Help on References: References: NAME( AntBidBlaNic4) PHYS. PROP.(Dana) OPTIC PROP.(AntBidBlaNic4)
Help on See Also: 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 - 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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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:

 

 
   
 


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