Mineralogy Database

Vanuranylite Mineral Data

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General Vanuranylite Information

Help on Chemical  Formula: Chemical Formula: (H3O,Ba,Ca,K)1.6(UO2)2V2O8•4(H2O) (?)
Help on Composition: Composition: Molecular Weight = 894.90 gm
   Potassium   0.44 %  K     0.53 % K2O
   Barium      3.07 %  Ba    3.43 % BaO
   Calcium     0.45 %  Ca    0.63 % CaO
   Uranium    53.20 %  U    60.35 % UO2
   Vanadium   11.38 %  V    20.32 % V2O5
   Hydrogen    1.25 %  H    11.17 % H2O
   Oxygen     30.21 %  O
             ______        ______ 
             100.00 %       96.42 % = TOTAL OXIDE
Help on Empirical Formula: Empirical Formula: (H3O)1.3Ba0.2Ca0.1K0.1(UO2)2V5+2O8�3.6(H2O)
Help on Environment: Environment: In the oxidation zone of a lead-bearing U-V deposit in sandstone.
Help on IMA Status: IMA Status: Discredited IMA 1968
Help on Locality: Locality: Mounana uranium mine, Franceville, Gabon. Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: Named in 1965 for the composition (VANadium, URanium, and Aluminum).
Help on Name Pronunciation: Name Pronunciation: Vanuranylite + Pronunciation Say VANURANYLITE
Help on Synonym: Synonym: Discredited

Vanuranylite Crystallography

Help on Axial Ratios: Axial Ratios: a:b:c =1.2532:1:2.4133
Help on Cell Dimensions: Cell Dimensions: a = 10.49, b = 8.37, c = 20.2, Z = 4; beta = 90° V = 1,773.59 Den(Calc)= 3.35
Help on Crystal System: Crystal System: Monoclinic - Prismatic H-M Symbol (2/m) Space Group: C 2/c ?
Help on X Ray Diffraction: X Ray Diffraction: By Intensity(I/Io): 3.23(1), 5(1), 2.11(0.8),

Physical Properties of Vanuranylite

Help on Cleavage: Cleavage: {100} Perfect
Help on Color: Color: Intense yellow.
Help on Density: Density: 3.644
Help on Habit: Habit: Encrustations - Forms crust-like aggregates on matrix.
Help on Habit: Habit: Platy - Sheet forms (e.g. micas).
Help on Habit: Habit: Pseudo Hexagonal - Crystals show a hexagonal outline.
Help on Hardness: Hardness: 2 - Gypsum
Help on Streak: Streak: light yellow

Optical Properties of Vanuranylite

Help on Gladstone-Dale: Gladstone-Dale: CI meas= -0.308 (Poor) - where the CI = (1-KPDmeas/KC)
CI calc= -0.423 (Poor) - where the CI = (1-KPDcalc/KC)
KPDcalc= 0.2478,KPDmeas= 0.2278,KC= 0.1742
Ncalc = 1.58 - 1.63
Help on Optical Data: Optical Data: Biaxial (-), a=1.65-1.71, b=1.85-1.92, g=1.9-1.95, bire=0.2400-0.2500, 2V(Calc)=36-48, 2V(Meas)=44. Dispersion r < v weak.
Help on Pleochroism (x): Pleochroism (x): pale yellow.
Help on Pleochroism (y): Pleochroism (y): yellow.
Help on Pleochroism (z): Pleochroism (z): yellow.

Calculated Properties of Vanuranylite

Help on Electron Density: Electron Density: Bulk Density (Electron Density)=3.19 gm/cc
note: Specific Gravity of Vanuranylite =3.64 gm/cc.
Help on Fermion Index: Fermion Index: Fermion Index = 0.0097379982
Boson Index = 0.9902620018
Help on Photoelectric: Photoelectric: PEVanuranylite =1,396.33 barns/electron
U=PEVanuranylite x relectron=4,450.85 barns/cc.
Help on Radioactivity: Radioactivity:

GRapi = 3,966,377.61 (Gamma Ray American Petroleum Institute Units)
Concentration of Vanuranylite per GRapi unit = 252.12 (PPB)

Vanuranylite 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) 7.67 ± 1.92 grams of pure Vanuranylite .
Estimated Maximum U.S. Postal Shipping Size (10 mRem/hr limit, Unshielded 100 cm box) 766.86 ±191.72 grams of pure Vanuranylite .

Estimated Radioactivity from Vanuranylite - very strong
Curies (Ci)
If Held in Hand
For One Hour
1000 gm / 8.06 cm 95,222,138 2.57E-03 3,966,377.61 1,304.01
100 gm / 3.74 cm 9,522,214 2.57E-04 396,637.76 130.40
10 gm / 1.74 cm 952,221 2.57E-05 39,663.78 13.04
1 gm / 8.06 mm 95,222 2.57E-06 3,966.38 1.30
0.1 gm / 3.74 mm 9,522 2.57E-07 396.64 0.13
0.01 gm / 1.74 mm 952 2.57E-08 39.66 0.01
0.001 gm / 0.81 mm 95 2.57E-09 3.97 0.00

Weight of pure Vanuranylite in grams (gm) and Calculated Diameter of a Sphere with a Density of 3.64 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

Vanuranylite Classification

Help on  Dana Class: Dana Class: 40.02a.30.01 (40)Hydrated Phosphates, etc
  (40.02a)where A++ (B++)2 (XO4) � x(H2O), containing (UO2)++
  (40.02a.30)Dana Group
40.02a.30.01 Vanuranylite? (H3O,Ba,Ca,K)1.6(UO2)2V2O8•4(H2O)(?) C 2/c ? 2/m
Help on  Strunz Class: Strunz Class: 08.XX.00 08 - PHOSPHATES, ARSENATES, VANADATES
  08.XX -Uranate, Hydrated Vanadate
08.XX.00 Arsenobismite? Bi2(AsO4)(OH)3 Unk Ortho
08.XX.00 Coeruleolactite (Ca,Cu)Al6(PO4)4(OH)8•4-5(H2O) P1 1
08.XX.00 Cheralite-(Ce)? (Ce,Ca,Th)(P,Si)O4 P 21/n 2/m
08.XX.00 Chernovite-(Ce)* (Ce,Y)(AsO4) I 41/amd 4/m 2/m 2/m
08.XX.00 Kerstenite? PbSeO4(?) P nma 2/m 2/m 2/m
08.XX.00 Laubmannite? Fe3Fe6(PO4)4(OH)12 Unk Ortho
08.XX.00 Spodiosite? Ca2(PO4)F Pbcm 2/m 2/m 2/m
08.XX.00 Pseudo-autunite* (H3O)4Ca2(UO2)2(PO4)4•5(H2O)(?) Unk Ortho
08.XX.00 Viseite Ca10Al24(SiO4)6(PO4)7O22F3•72(H2O)(?) I a3d 4/m 3 2/m
08.XX.00 Vanuranylite? (H3O,Ba,Ca,K)1.6(UO2)2V2O8•4(H2O)(?) C 2/c ? 2/m
08.XX.00 Sodium-autunite Na2(UO2)2(PO4)2•8(H2O) P 4/nmm 4/m 2/m 2/m
08.XX.00 Sodium meta-autunite! Na2(UO2)2(PO4)2•6-8(H2O) P 4/nmm 4/m 2/m 2/m
08.XX.00 Slavkovite! Cu13(AsO4)6(AsO3OH)4•23(H2O) P1 1
08.XX.00 IMA2000-020! Fe4[AsO3OH]5[AsO2(OH)2]2•20(H2O) Ortho Ortho
08.XX.00 Lewisite! (Ca,Fe,Na)2(Sb,Ti)2O7 F d3m 4/m 3 2/m
08.XX.00 Kamarizaite! Fe3(AsO4)2(OH)3•3H2O Pccm, Pcc2, Pcmm, Pcm21 Ortho
08.XX.00 Lapeyreite! Cu3O[AsO3(OH)]2•H2O C 2/m 2/m
08.XX.00 IMA2008-063 Pb[Zn0.25,[]0.75]Fe3H(AsO4)2(OH)6 C 2/c 2/m
08.XX.00 IMA2009-002! Cu3(AsO4)2 P 21/c 2/m
08.XX.00 IMA2009-005 (Y,Ca,REE)5[(Si,P)O4]3F P 63/m 6/m 2/m 2/m
08.XX.00 IMA2009-016 Cu4H(AsO4)2(OH)3•H2O P1 1

Other Vanuranylite Information

Help on References: References: NAME( Dana8) PHYS. PROP.(Enc. of Minerals,2nd ed.,1990) OPTIC PROP.(AntBidBlaNic4)
Help on See Also: See Also: Links to other databases for Vanuranylite :
1 - Am. Min. Crystal Structure Database
2 - Athena
3 - EUROmin Project
4 - GeoScienceWorld
5 - Google Images
6 - Google Scholar
7 - Handbook of Mineralogy (UofA)
8 - MinDAT
9 - Mineralienatlas (Deutsch)
10 - Online Mineral Museum
11 - QUT Mineral Atlas
12 - Ruff.Info
13 - Uranium Minerals

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


(H3O,Ba,Ca,K)1.6(UO2)2V2O8•4(H2O) (?)
Dana No: 40.02a.30.01 Strunz No: 08.XX.00





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