Vanuranylite Mineral Data

General Vanuranylite Information

Chemical Formula:

(H3O,Ba,Ca,K)1.6(UO2)2V2O8•4(H2O) (?)

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

Empirical Formula:

(H₃O)_1.3Ba_0.2Ca_0.1K_0.1(UO₂)₂V⁵⁺₂O₈ï¿½3.6(H₂O)

Environment:

In the oxidation zone of a lead-bearing U-V deposit in sandstone.

IMA Status:

Discredited IMA 1968

Locality:

Mounana uranium mine, Franceville, Gabon. Link to MinDat.org Location Data.

Name Origin:

Named in 1965 for the composition (VANadium, URanium, and Aluminum).

Name Pronunciation:

Vanuranylite + Pronunciation

Synonym:

Discredited

Vanuranylite Crystallography

Axial Ratios:

a:b:c =1.2532:1:2.4133

Cell Dimensions:

a = 10.49, b = 8.37, c = 20.2, Z = 4; beta = 90° V = 1,773.59 Den(Calc)= 3.35

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/I_o): 3.23(1), 5(1), 2.11(0.8),

Physical Properties of Vanuranylite

Cleavage:

{100} Perfect

Color:

Intense yellow.

Density:

3.644

Habit:

Encrustations - Forms crust-like aggregates on matrix.

Habit:

Platy - Sheet forms (e.g. micas).

Habit:

Pseudo Hexagonal - Crystals show a hexagonal outline.

Hardness:

2 - Gypsum

Streak:

light yellow

Optical Properties of Vanuranylite

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

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.

Pleochroism (x):

pale yellow.

Pleochroism (y):

yellow.

Pleochroism (z):

yellow.

Calculated Properties of Vanuranylite

Electron Density:

Bulk Density (Electron Density)=3.19 gm/cc
note: Specific Gravity of Vanuranylite =3.64 gm/cc.

Fermion Index:

Fermion Index = 0.0097379982
Boson Index = 0.9902620018

Photoelectric:

PE_Vanuranylite=1,396.33 barns/electron
U=PE_Vanuranylite x r_electron=4,450.85 barns/cc.

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
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 / 8.06 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

Dana Class:

40.02a.30.01 (40)Hydrated Phosphates, etc

(40.02a)where A++ (B++)2 (XO4) ï¿½ 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

Strunz Class:

08.XX.00 08 - PHOSPHATES, ARSENATES, VANADATES

08.X - Unclassified Strunz 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

References:

NAME( Dana8) PHYS. PROP.(Enc. of Minerals,2nd ed.,1990) OPTIC PROP.(AntBidBlaNic4)

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 :

Vanuranylite

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

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