Uranospathite Mineral Data

Uranospathite Mineral Data +

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General Uranospathite Information

Chemical Formula:

HAl(UO2)4(PO4)4·40(H2O)

Composition:

Molecular Weight = 2,208.60 gm

Uranium 43.11 % U 48.90 % UO₂

Aluminum 1.22 % Al 2.31 % Al₂O₃

Phosphorus 5.61 % P 12.85 % P₂O₅

Hydrogen 3.70 % H 33.04 % H₂O

Oxygen 46.36 % O

______ ______

100.00 % 97.10 % = TOTAL OXIDE

Empirical Formula:

HAl(UO₂)₄(PO₄)₄·40(H₂O)

IMA Status:

Valid Species (Pre-IMA) 1915

Locality:

Link to MinDat.org Location Data.

Uranospathite Image

Images:

Uranospathite

Comments: Minute, less than 0.1cm platy yellow crystals or uranospahtite on matrix.
Location: Pedro Alvaro, Salamanca, Spain. Scale: Picture size 1 cm.
© Tom Loomis / Dakota Matrix

Uranospathite Crystallography

Axial Ratios:

a:c = 1:4.28857

Cell Dimensions:

a = 7, c = 30.02, Z = 1; V = 1,470.98 Den(Calc)= 2.49

Crystal System:

Tetragonal - DipyramidalH-M Symbol (4/m) Space Group: P 4₁/n

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

By Intensity(I/I_o): 4.93(1), 7.6(1), 15.22(1),

Crystal Structure:

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Locock A J , Kinman W S , Burns P C , The Canadian Mineralogist , 43 (2005) p.989-1003, The structure and composition of uranospathite,, Al1-xVacancyx[(UO2)(PO4)]2(H2O)20+3xF1-3x, x = 0 - 0.33,, a non-centrosymmetric flourine-bearing mineral of the autunite group,, and of a related synthetic lower hydrate,, Al0.67Vacancy0.33[(UO2)(PO4)]2(H2O)15.5, Locality: Venachat, Haute-Vienne, France

Physical Properties of Uranospathite

Cleavage:

[001] Perfect, [100] Good

Color:

Bluish green, Yellow, Light green.

Density:

2.5

Hardness:

2-2.5 - Gypsum-Finger Nail

Streak:

yellow white

Optical Properties of Uranospathite

Gladstone-Dale:

CI meas= -0.072 (Fair) - where the CI = (1-KPDmeas/KC)
CI calc= -0.076 (Fair) - where the CI = (1-KPDcalc/KC)
KPDcalc= 0.204,KPDmeas= 0.2032,KC= 0.1895

Optical Data:

Biaxial (-), a=1.492, b=1.511, g=1.521, bire=0.0290, 2V(Calc)=70, 2V(Meas)=69.

Calculated Properties of Uranospathite

Electron Density:

r_electron=2.34 gm/cc
note: r_{Uranospathite}=2.50 gm/cc.

Fermion Index

Fermion Index = 0.00333
Boson Index = 0.99667

Photoelectric:

PE_{Uranospathite}=1,044.99 barns/electron
U=PE_{Uranospathite} x r_electron=2,446.17 barns/cc.

Radioactivity:

GRapi = 3,440,652.67 (Gamma Ray American Petroleum Institute Units)

Uranospathite 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) 8.84 ± 2.21 grams of pure Uranospathite .
Estimated Maximum U.S. Postal Shipping Size (10 mRem/hr limit, Unshielded 100 cm box) 884.04 ±221.01 grams of pure Uranospathite .

**Estimated Radioactivity from Uranospathite** - 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 / 9.14 cm	77,166,041	2.09E-03	3,440,652.67	1,131.17
100 gm / 4.24 cm	7,716,604	2.09E-04	344,065.27	113.12
10 gm / 1.97 cm	771,660	2.09E-05	34,406.53	11.31
1 gm / 9.14 mm	77,166	2.09E-06	3,440.65	1.13
0.1 gm / 4.24 mm	7,717	2.09E-07	344.07	0.11
0.01 gm / 1.97 mm	772	2.09E-08	34.41	0.01
0.001 gm / 0.91 mm	77	2.09E-09	3.44	0.00

Weight of pure Uranospathite in grams (gm) and Calculated Diameter of a Sphere with a Density of 2.50 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

Uranospathite Classification

Dana Class:

40.2a.22.1 (40)Hydrated Phosphates, etc

(40.2a)where A++ (B++)2 (XO4) · x(H2O), containing (UO2)++

(40.2a.22)Dana Group

40.2a.22.1 Uranospathite HAl(UO2)4(PO4)4·40(H2O) P 4₁/n 4/m

Strunz Class:

VII/E.04-10 VII - Phosphates, Arsenates and Vanadates

VII/E - Uranylphosphates and uranylvanadates with [UO2]2+ - [PO4 | AsO4]3- and [UO2]2+ - [V2O8]6-

VII/E.04 - Uranospathite - Arsenuranospathite series

VII/E.04-10 Uranospathite HAl(UO2)4(PO4)4·40(H2O) P 4₁/n 4/m

VII/E.04-20 Arsenuranospathite HAl(UO2)4(AsO4)4·40(H2O) P 4₁/n 4/m

Other Uranospathite Information

References:

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

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

Uranospathite

HAl(UO2)4(PO4)4·40(H2O)
Dana No: 40.2a.22.1 Strunz No: VII/E.04-10
Locality:

Notes: