Uranospinite

 IMA-GP
Uranium  
(Dana Classification Number)
(Images) 7/E.01-100
(Strunz ID)
Unless sealed in glass, all specimens should be considered to have become Meta-Uranospinite within a few months of being exposed to ambient air.

Property Data Remarks
Named for: Its uranium content, and the Greek word 'spinos', a green finch, for its green color
Alternate
    Name(s):
  • Calcium-uranospinite
  • Calciumarsenuranit
  
Mineral Class:
Phosphates, Arsenates and Vanadates
  Uranylphosphates and uranylvanadates with
[UO2]2+ - [PO4 | AsO4]3- and
[UO2]2+ - [V2O8]6-
    Autunite group
 
Chemical
    Formula:		 Ca(UO2)2(AsO4)2 · 10H2O  
Chemical
    Composition:
Arsenic: (As) 14.43%
Calcium: (Ca) 3.86%
Hydrogen: (H) 1.94%
Oxygen: (O) 33.91%
Uranium: (U) 45.86%
by weight
Molecular
    Weight:		 1,038.12 daltons (amu)
Specific
    Radioactivity:

(All radiation is for a 1 gram, fully aged specimen)

Specific Activity Dose Rate
Becquerels Curies milliRems/hour microSieverts/hour
8.2085 × 1004 2.22 × 10-06 1.15 115.37

Estimated Average Annual Exposure: 360 mRem (3.6 milliSieverts)
Crystalography:
System: Tetragonal - Ditetragonal Dipyramidal
Axial Ratios: a:c = 1:2.87447
Cell Dimensions: a = 7.17, c = 20.61, Z = 2; V = 1,059.54 Den(Calc) = 3.25
H-M Symbol: 4/m 2/m 2/m
Space Group: I4/mmm
X Ray Diffraction: By Intensity(I/Io): 10.16(1) 3.56(0.9) 3.39(0.8)
 
Habit:
  • Platy
  • Aggregates
    		•   
    Cleavage:
    [001] Perfect
    [100] Distinct
    		 
    Fracture: Brittle  
    Moh's
        Hardness:    		 2 - 3  
    Density: 3.45 grams/cm3
    Color: Yellow to Greenish yellow  
    Streak: Light yellow  
    Luster: Pearly  
    Diaphaneity: Transparent to Translucent  
    Pleochroism:
    (x): Colorless
    (y:) Pale yellow
    (z:) Pale yellow
    		 
    Ultra Violet
        Fluorescence:
    Long Wave: Yellowish green
    Short Wave:
    		 
    Magnetism: Non-magnetic  
    Occurance:
  • Alteration product of uraninite
  		•   
    Associated
        Minerals:

    Acanthite, Anglesite, Annabergite, Aragonite, Arsenic, Arsenopyrite, Arsenuranospathite, Autunite, Azurite, Barite, Barium-Pharmacosiderite, Becquerelite, Bismuth, Bismuthinite, Bornite, Brochantite, Calcite, Chalcocite, Chalcopyrite, Chrysocolla, Coffinite, Copper, Covellite, Cuprite, Devilline, Dolomite, Erythrite, Fluorite, Galena, Goethite, Hematite, Kaolinite, Kasolite, Langite, Lavendulan, Löllingite, Malachite, Marcasite, Metaheinrichite, Metanovácekite, Metatorbernite, Metazeunerite, Muscovite, Nickeline, Novácekite, Proustite, Pyrite, Pyrolusite, Quartz, Safflorite, Schoepite, Silver, Skutterudite, Sphalerite, Tennantite, Torbernite, Uraninite, Uranophane, Vandendriesscheite, Walpurgite, Wolsendorfite, Xanthoconite, Zeunerite

    Mineral   -   > 61% of sites
    Mineral   -   > 43% of sites
    Mineral   -   > 26% of sites
    Minerals   -   Uranium & Thorium
    mineral links

    		These are minerals known to be found with Uranospinite
    Locations:

    Rare

    Uranospinite Locations
    Notes:

    Strongly radioactive a- and b-particles, g-rays.

    Crystals are probably metamict.

    Uranospinite Images

    Specimen #1
    (001a) (001b) (001c) (001d)
    Zálesí (Valdek) deposit, Jeseník, Javorník, Severomoravský Kraj,
    Moravia (Maehren; Mähren), Czech Republic


    Specimen Notes

    Occurrence -  

     

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