Mineralogy Database

Uranospinite Mineral Data

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General Uranospinite Information

Help on Chemical  Formula: Chemical Formula: Ca(UO2)2(AsO4)2•10(H2O)
Help on Composition: Composition: Molecular Weight = 1,038.12 gm
   Calcium    3.86 %  Ca    5.40 % CaO
   Uranium   45.86 %  U    52.02 % UO2
   Arsenic   14.43 %  As   22.14 % As2O5
   Hydrogen   1.94 %  H    17.35 % H2O
   Oxygen    33.91 %  O
            ______        ______ 
            100.00 %       96.92 % = TOTAL OXIDE
Help on Empirical Formula: Empirical Formula: Ca(UO2)2(AsO4)2•10(H2O)
Help on Environment: Environment: Alteration product of uraninite.
Help on IMA Status: IMA Status: Valid Species (Pre-IMA) 1873
Help on Locality: Locality: Weisser Hirsch mine, Neustadtl, Schneeberg, Saxony, Germany. Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: Named for uranium and the Greek for "siskin," in allusion to its composition and color.
Help on Name Pronunciation: Name Pronunciation: Uranospinite + Pronunciation Say URANOSPINITE
 

Uranospinite Image

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  Uranospinite   Metauranospinite

Comments: Translucent platy uranospinite (probably dehydrated to metauranospinite) microcrystals on matrix.
Location: Grube Buhlskopf, near Ellweiler, Rheinland-Pfalz, Germany. Scale: See Photo.
© Jeff Weissman / Photographic Guide to Mineral Species

Uranospinite Crystallography

Help on Axial Ratios: Axial Ratios: a:b:c =0.6945:1:0.347
Help on Cell Dimensions: Cell Dimensions: a = 14.35, b = 20.66, c = 7.17, Z = 4; V = 2,125.70 Den(Calc)= 3.24
Help on Crystal System: Crystal System: Orthorhombic - Dipyramidal H-M Symbol (2/m 2/m 2/m) Space Group: P nma
Help on X Ray Diffraction: X Ray Diffraction: By Intensity(I/Io): 10.16(1), 3.56(0.9), 3.39(0.8),
 

Physical Properties of Uranospinite

Help on Cleavage: Cleavage: {001} Perfect, {100} Distinct
Help on Color: Color: Siskin green, Lemon yellow, Yellow green.
Help on Density: Density: 3.45
Help on Diaphaneity: Diaphaneity: Transparent
Help on Fracture: Fracture: Brittle - Generally displayed by glasses and most non-metallic minerals.
Help on Habit: Habit: Aggregates - Made of numerous individual crystals or clusters.
Help on Habit: Habit: Platy - Sheet forms (e.g. micas).
Help on Hardness: Hardness: 2-3 - Gypsum-Calcite
Help on Luminescence: Luminescence: Fluorescent, Short UV=bright lemon yellow, Long UV=yellowish green.
Help on Luster: Luster: Pearly
Help on Streak: Streak: light yellow
 

Optical Properties of Uranospinite

Help on Gladstone-Dale: Gladstone-Dale: CI meas= -0.056 (Good) - where the CI = (1-KPDmeas/KC)
CI calc= -0.124 (Poor) - where the CI = (1-KPDcalc/KC)
KPDcalc= 0.1779,KPDmeas= 0.1671,KC= 0.1582
Ncalc = 1.51 - 1.55
Help on Optical Data: Optical Data: Biaxial (-), a=1.56, b=1.582, g=1.587, bire=0.0270, 2V(Calc)=50, 2V(Meas)=0-5. Dispersion r > v moderate.
Help on Pleochroism (x): Pleochroism (x): colorless.
Help on Pleochroism (y): Pleochroism (y): pale yellow.
Help on Pleochroism (z): Pleochroism (z): pale yellow.
 

Calculated Properties of Uranospinite

Help on Electron Density: Electron Density: Bulk Density (Electron Density)=3.10 gm/cc
note: Specific Gravity of Uranospinite =3.45 gm/cc.
Help on Fermion Index: Fermion Index: Fermion Index = 0.0035195187
Boson Index = 0.9964804813
Help on Photoelectric: Photoelectric: PEUranospinite =1,169.85 barns/electron
U=PEUranospinite x relectron=3,623.41 barns/cc.
Help on Radioactivity: Radioactivity:

GRapi = 3,509,218.19 (Gamma Ray American Petroleum Institute Units)
Concentration of Uranospinite per GRapi unit = 284.96 (PPB)

Uranospinite 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) 8.67 ± 2.17 grams of pure Uranospinite .
Estimated Maximum U.S. Postal Shipping Size (10 mRem/hr limit, Unshielded 100 cm box) 866.76 ±216.69 grams of pure Uranospinite .

Estimated Radioactivity from Uranospinite - 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 / 8.21 cm 82,084,893 2.22E-03 3,509,218.19 1,153.72
100 gm / 3.81 cm 8,208,489 2.22E-04 350,921.82 115.37
10 gm / 1.77 cm 820,849 2.22E-05 35,092.18 11.54
1 gm / 8.21 mm 82,085 2.22E-06 3,509.22 1.15
0.1 gm / 3.81 mm 8,208 2.22E-07 350.92 0.12
0.01 gm / 1.77 mm 821 2.22E-08 35.09 0.01
0.001 gm / 0.82 mm 82 2.22E-09 3.51 0.00

Weight of pure Uranospinite in grams (gm) and Calculated Diameter of a Sphere with a Density of 3.45 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
 

Uranospinite Classification

Help on  Dana Class: Dana Class: 40.02a.02.01 (40)Hydrated Phosphates, etc
  (40.02a)where A++ (B++)2 (XO4) � x(H2O), containing (UO2)++
  (40.02a.02)Dana Group
 
40.02a.02.01 Uranospinite Ca(UO2)2(AsO4)2•10(H2O) P nma 2/m 2/m 2/m
 
40.02a.02.02 Metauranospinite Ca(UO2)2(AsO4)2•8(H2O) P 4/nmm 4/m 2/m 2/m
Help on  Strunz Class: Strunz Class: 08.EB.05 08 - PHOSPHATES, ARSENATES, VANADATES
  08.E - Uranyl Phosphates and Arsenates
  08.EB -UO2:RO4 = 1:1
 
08.EB.05 Autunite Ca(UO2)2(PO4)2•10-12(H2O) I 4/mmm 4/m 2/m 2/m
 
08.EB.05 Heinrichite Ba(UO2)2(AsO4)2•10-12(H2O) P 2/c 2/m
 
08.EB.05 Kahlerite Fe(UO2)2(AsO4)2•10-12(H2O) P 41/n 4/m
 
08.EB.05 Uranocircite Ba(UO2)2(PO4)2•12(H2O) P 4/nnc 4/m 2/m 2/m
 
08.EB.05 Novacekite Mg(UO2)2(AsO4)2•12(H2O) P 41/n 4/m
 
08.EB.05 Saleeite Mg(UO2)2(PO4)2•10(H2O) I 4/mmm 4/m 2/m 2/m
 
08.EB.05 Xiangjiangite (Fe,Al)(UO2)4(PO4)2(SO4)2(OH)•22(H2O) C 2/c or Cc Mono
 
08.EB.05 Torbernite Cu(UO2)2(PO4)2•8-12(H2O) I 4/mmm 4/m 2/m 2/m
 
08.EB.05 Uranospinite Ca(UO2)2(AsO4)2•10(H2O) P nma 2/m 2/m 2/m
 
08.EB.05 Zeunerite Cu(UO2)2(AsO4)2•10-16(H2O) P 4/nnc 4/m 2/m 2/m
 
08.EB.05 Metarauchite! Ni(UO2)2(AsO4)2•8H2O P1 1
 

Other Uranospinite Information

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

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

Uranospinite

Ca(UO2)2(AsO4)2•10(H2O)
Dana No: 40.02a.02.01 Strunz No: 08.EB.05
Locality:

 

Notes:

 

 
   
 


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