Uranospathite Mineral Data

General Uranospathite Information

Chemical Formula:

Al1-x[ ]x[(UO2)(PO4)]2(H2O)20+3xF1-3x

Composition:

Molecular Weight = 1,130.30 gm

Uranium 42.12 % U 47.78 % UO₂

Aluminum 1.91 % Al 3.61 % Al₂O₃

Phosphorus 5.48 % P 12.56 % P₂O₅

Hydrogen 3.67 % H 32.83 % H₂O

Oxygen 46.15 % O

Fluorine 0.67 % F 0.67 % F

- % F -0.28 % -O=F₂

______ ______

100.00 % 97.17 % = TOTAL OXIDE

Empirical Formula:

Al_0.82(UO₂)2(PO₄)(H₂O)_20.6(F)_0.4

Environment:

Looses water in non-humid conditions to become sabugalite.

IMA Status:

Valid Species (Pre-IMA) 1915

Locality:

Basset mine, Redruth, Cornwall, England. Link to MinDat.org Location Data.

Name Origin:

Named for the composition and the Greek for "broad blade" in allusion to the crystal habit.

Name Pronunciation:

Uranospathite + Pronunciation

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:b:c =4.2834:1:1.0058

Cell Dimensions:

a = 30.02, b = 7.0084, c = 7.0492, Z = 2; V = 1,483.10 Den(Calc)= 2.53

Crystal System:

Orthorhombic - Pyramidal H-M Symbol (mm2) Space Group: Pnn2

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

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

Physical Properties of Uranospathite

Cleavage:

{001} Perfect, {100} Good, {010} Indistinct

Color:

Bluish green, Yellow, Light green.

Density:

2.5

Habit:

Bladed - Aggregates of thin lath-like crystals (e.g. kyanite).

Hardness:

2.5 - Finger Nail

Luminescence:

Fluorescent, Long UV=yellow green.

Streak:

yellow white

Optical Properties of Uranospathite

Gladstone-Dale:

CI meas= -0.068 (Fair) - where the CI = (1-KPDmeas/KC)
CI calc= -0.056 (Good) - where the CI = (1-KPDcalc/KC)
KPDcalc= 0.2008,KPDmeas= 0.2032,KC= 0.1902
Ncalc = 1.48

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:

Bulk Density (Electron Density)=2.37 gm/cc
note: Specific Gravity of Uranospathite =2.53 gm/cc.

Fermion Index:

Fermion Index = 0.0032594993
Boson Index = 0.9967405007

Photoelectric:

PE_{Uranospathite}=1,019.39 barns/electron
U=PE_{Uranospathite} x r_electron=2,418.64 barns/cc.

Radioactivity:

GRapi = 3,366,772.45 (Gamma Ray American Petroleum Institute Units)
Concentration of Uranospathite per GRapi unit = 297.02 (PPB)

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) 9.03 ± 2.26 grams of pure Uranospathite .
Estimated Maximum U.S. Postal Shipping Size (10 mRem/hr limit, Unshielded 100 cm box) 903.44 ±225.86 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 / 9.11 cm	75,391,078	2.04E-03	3,366,772.45	1,106.88
100 gm / 4.23 cm	7,539,108	2.04E-04	336,677.24	110.69
10 gm / 1.96 cm	753,911	2.04E-05	33,667.72	11.07
1 gm / 9.11 mm	75,391	2.04E-06	3,366.77	1.11
0.1 gm / 4.23 mm	7,539	2.04E-07	336.68	0.11
0.01 gm / 1.96 mm	754	2.04E-08	33.67	0.01
0.001 gm / 0.91 mm	75	2.04E-09	3.37	0.00

Weight of pure Uranospathite in grams (gm) and Calculated Diameter of a Sphere with a Density of 2.53 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:

40.02a.22.01 (40)Hydrated Phosphates, etc

(40.02a)where A++ (B++)2 (XO4) ï¿½ x(H2O), containing (UO2)++

(40.02a.22)Dana Group

40.02a.22.01 Uranospathite Al1-x[]x[(UO2)(PO4)]2(H2O)203xF1-3x Pnn2 mm2

Strunz Class:

08.EB.25 08 - PHOSPHATES, ARSENATES, VANADATES

08.E - Uranyl Phosphates and Arsenates

08.EB -UO2:RO4 = 1:1

08.EB.25 Arsenuranospathite HAl(UO2)4(AsO4)4•40(H2O) P 4₁/n 4/m

08.EB.25 Uranospathite Al1-x[]x[(UO2)(PO4)]2(H2O)203xF1-3x Pnn2 mm2

Other Uranospathite Information

References:

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

See Also:

Links to other databases for Uranospathite :
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

Search for Uranospathite using:

[AOL] [Bing] [Dog Pile] [GeoScienceWorld] [HotBot] [Ixquick] [Lycos] [MAMMA] [Scirus] [Teoma] [WebCrawler] [Wikipedia] [YAHOO]

Visit our Advertisers for Uranospathite :

Ask about Uranospathite 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 Uranospathite Specimen Label here :

Uranospathite

Al1-x[ ]x[(UO2)(PO4)]2(H2O)20+3xF1-3x
Dana No: 40.02a.22.01 Strunz No: 08.EB.25
Locality:

Notes:

Dakota Matrix
Excalibur Minerals
Exceptional Minerals
Hudson Insitute
John Betts Fine Minerals
Mc Dougall Minerals
Mineral News
Rock and Mineral Shows
Weinrich Minerals, Inc.