Sodium Uranospinite

 IMA-GP
Uranium 40.2a.6.1
(Dana Classification Number)
(No Images) 7/E.02-130
(Strunz ID)

Property Data Remarks
Named for: Its composition, and the Greek 'siskin' for its color
Alternate
    Name(s):
  • Sodium Uranospinite
    		•   
    Mineral Class:
    Phosphates, Arsenates and Vanadates
      Uranylphosphates and uranylvanadates with
    [UO2]+2 - [PO4 | AsO4]-3 and
    [UO2]+2 - [V2O8]-6
        Meta-Autunite group
    		 
    Chemical
        Formula:    		 (Na2,Ca)(UO2)2(AsO4)2 · 5H2O  
    Chemical
        Composition:
    Arsenic: (As) 15.73%
    Calcium: (Ca) 1.05%
    Hydrogen: (H) 1.06%
    Oxygen: (O) 28.56%
    Sodium: (Na) 3.62%
    Uranium: (U) 49.98%
    		by weight
    Molecular
        Weight:    		 952.47 daltons (amu)
    Specific
        Radioactivity:

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

    Specific Activity Dose Rate
    Becquerels Curies milliRems/hour microSieverts/hour
    8.9466 × 1004 2.42 × 10-06 1.23 122.79

    Estimated Average Annual Exposure: 360 mRem (3.6 milliSieverts)
    Crystalography:
    System: Tetragonal - Ditetragonal Dipyramidal
    Axial Ratios: a: 1
    c: 1.20926
    Cell Dimensions: a: 7.12 Å
    c: 8.61 Å
    Z: 1
    V: 436.48 Å3
    DenCalc: 3.62
    H-M Symbol: 4/m 2/m 2/m
    Space Group: P4/nmm
    X-Ray Diffraction:
      By Intensity ( I/Io )    		 (1): 8.42 Å
    (0.9): 3.63 Å
    (0.8): 3.27 Å
    		 
    Habit:
  		•  
    Cleavage:
    [001]  
    [010]  
    [100]  
    		 
    Fracture:    
    Moh's
        Hardness:    		 2.5  
    Density: 3.85 grams/cm3
    Color: Yellow-green  
    Streak: Pale yellow  
    Luster: Vitreous - Pearly  
    Diaphaneity: Transparent to Translucent  
    Pleochroism:
    (x):  
    (y:)  
    (z:)  
    		 
    Ultra Violet
        Fluorescence:
    Long Wave:  
    Short Wave:  
    		 
    Magnetism: Non-magnetic  
    Occurance:
  		•  
    Associated
        Minerals:

    Aragonite, Arsenic, Azurite, Barite, Calcite, Cerussite, Chalcocite, Chalcopyrite, Coffinite, Conichalcite, Copper, Covellite, Galena, Gypsum, Ianthinite, Kasolite, Malachite, Marcasite, Masuyite, Metaheinrichite, Metazeunerite, Novácekite, Pharmacosiderite, Pyrite, Quartz, Rabejacite, Rutherfordine, Safflorite, Schoepite, Silver, Sphalerite, Tyrolite, Uranophane-beta, Uranopilite, Uranospinite, Zeunerite, Zippeite

    Mineral   -   > 86% of sites
    Mineral   -   > 71% of sites
    Mineral   -   > 43% of sites
    Minerals   -   Uranium & Thorium
    mineral links

    		These are minerals known to be found with Sodium Uranospinite
    Locations:

    Rare

    Sodium Uranospinite Locations
    Notes:

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