meta-Uranospinite

 IMA-GP
Uranium 40.2a.2.2
(Dana Classification Number)
(No Images) 7/E.02-100
(Strunz ID)

Property Data Remarks
Named for: Being the meta- form of Uranospinite, named for its uranium content, and the Greek 'siskin' for its color
Alternate
    Name(s):
  		•  
    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:    		 Ca(UO2)2(AsO4)2 · 8H2O  
    Chemical
        Composition:
    Arsenic: (As) 14.95%
    Calcium: (Ca) 4.00%
    Hydrogen: (H) 1.61%
    Oxygen: (O) 31.93%
    Uranium: (U) 47.51%
    		by weight
    Molecular
        Weight:    		 1,002.09 daltons (amu)
    Specific
        Radioactivity:

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

    Specific Activity Dose Rate
    Becquerels Curies milliRems/hour microSieverts/hour
    8.5036 × 1004 2.30 × 10-06 1.19 118.50

    Estimated Average Annual Exposure: 360 mRem (3.6 milliSieverts)
    Crystalography:
    System: Tetragonal - Ditetragonal Dipyramidal
    Axial Ratios: a: 1
    c: 2.38095
    Cell Dimensions: a: 7.14 Å
    c: 17 Å
    Z: 2
    V: 866.65 Å3
    DenCalc: 3.84
    H-M Symbol: 4/m 2/m 2/m
    Space Group: P 4/nmm
    X-Ray Diffraction:
      By Intensity ( I/Io )    		 (1): 3.57 Å
    (1): 8.65 Å
    (0.9): 3.31 Å
    		 
    Habit:
  		•  
    Cleavage:
    [???] Perfect
    		 
    Fracture:    
    Moh's
        Hardness:    		 2 - 3  
    Density:   grams/cm3
    Color: Yellow, Siskin green  
    Streak: Pale yellow  
    Luster: Pearly  
    Diaphaneity: Transparent to Translucent  
    Pleochroism:
    (x):  
    (y:)  
    (z:)  
    		 
    Ultra Violet
        Fluorescence:
    Long Wave:  
    Short Wave:  
    		 
    Magnetism: Non-magnetic  
    Occurance:
  		•  
    Associated
        Minerals:

    Anglesite, Arsenic, Brochantite, Calcite, Cerussite, Chalcanthite, Chalcocite, Chrysocolla, Coffinite, Copper, Devilline, Erythrite, Galena, Jarosite, Kasolite, Langite, Malachite, Metazeunerite, Mimetite, Nickel-Skutterudite, Opal, Safflorite, Silver, Skutterudite, Sphalerite, Tennantite, Tenorite, Uraninite, Uranophane-beta, Wulfenite

    Mineral   -   All of the sites
    Mineral   -   > 80% of sites
    Mineral   -   > 60% of sites
    Minerals   -   Uranium & Thorium
    mineral links

    		These are minerals known to be found with meta-Uranospinite
    Locations:

    Very rare

    meta-Uranospinite Locations
    Notes:

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