Paraschoepite

 IMA-GP
Uranium 5.2.1.2
(Dana Classification Number)
(No Images) 4/H.01-60
(Strunz ID)

Property Data Remarks
Named for:  
Alternate
    Name(s):
  • Schoepite III
    		•   
    Mineral Class:
    Oxides
      Uranyl ([UO2]+2) hydroxides and hydrates
        Ianthinite - Paraschoepite series
    		 
    Chemical
        Formula:    		 UO3 · 2 H2O  
    Chemical
        Composition:
    Hydrogen: (H) 1.25%
    Oxygen: (O) 24.84%
    Uranium: (U) 73.91%
    		by weight
    Molecular
        Weight:    		 322.06 daltons (amu)
    Specific
        Radioactivity:

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

    Specific Activity Dose Rate
    Becquerels Curies milliRems/hour microSieverts/hour
    1.32297 × 1005 3.58 × 10-06 1.75 174.93

    Estimated Average Annual Exposure: 360 mRem (3.6 milliSieverts)
    Crystalography:
    System: Orthorhombic - Dipyramidal
    Axial Ratios: a: 0.8389
    b: 1
    c: 0.9043
    Cell Dimensions: a: 14.12 Å
    b: 16.83 Å
    c: 15.22 Å
    Z: 32
    V: 3,616.87 Å3
    DenCalc: 4.73
    H-M Symbol: 2/m 2/m 2/m
    Space Group: Pbca
    X-Ray Diffraction:
      By Intensity ( I/Io )    		 (1): 7.5 Å
    (1): 3.56 Å
    (1): 3.22 Å
    (0.5): 3.32 Å
    (0.5): 3.17 Å
    		 
    Habit:
  • Tabular crystals on {001} plane
  • Columnar to acicular crystals
  • Encrustations
    		•   
    Cleavage:
    [001] Perfect
    [010] Distinct
    [100]  
    		 
    Fracture: Brittle  
    Moh's
        Hardness:    		 2 - 3  
    Density: 3.30 - 3.72 grams/cm3
    Color: Yellow, Greenish-yellow  
    Streak: Light yellow  
    Luster: Adamantine  
    Diaphaneity:    
    Pleochroism:
    (x):  
    (y:)  
    (z:)  
    		 
    Ultra Violet
        Fluorescence:
    Long Wave:  
    Short Wave:  
    		 
    Magnetism: Non-magnetic  
    Occurance:
  • Alteration product
    		•   
    Associated
        Minerals:

    Arsenuranylite, Barite, Becquerelite, Bijvoetite-(Y), Billietite, Calcite, Calcite var: Cobaltoan Calcite, Carrollite, Cattierite, Chernikovite, Comblainite, Cousinite, Cuprosklodowskite, Curienite, Curite, Dewindtite, Dumontite, Fourmarierite, Guilleminite, Gysinite-(Nd), Ianthinite, Kasolite, Lepersonnite-(Gd), Liebigite, Masuyite, Metaschoepite, Metastudtite, Metatorbernite, Metavandendriesscheite, Metazeunerite, Novácekite, Oursinite, Parsonsite, Phosphuranylite, Phurcalite, Piretite, Platinum, Protasite, Richetite, Roubaultite, Rutherfordine, Saléeite, Sayrite, Schmitterite, Schoepite, Sengierite, Sharpite, Sklodowskite, Soddyite, Studtite, Torbernite, Umohoite, Urancalcarite, Uraninite, Uranophane, Uranospinite, Vaesite, Vandenbrandeite, Vandendriesscheite, Wolsendorfite, Wyartite, Zippeite

    Mineral   -   All of the sites
    Mineral   -   > 50% of sites
    Minerals   -   Uranium & Thorium
    mineral links

    		These are minerals known to be found with Paraschoepite
    Locations:

    Very rare

    Paraschoepite Locations
    Notes:

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

    Crystals are probably metamic.