Liebigite

 IMA-GP
Uranium  
(Dana Classification Number)
(Images) 4/D.23-20
(Strunz ID)

Property Data Remarks
Named for: Justus Liebig (1803-1873), German chemist
Alternate
    Name(s):
  • Flutherit
  • Flutherita
  • Flutherite
  • Hebergit
  • Hebergita
  • Hebergite
  • Kalkurancarbonat
    		•
  • Liebigit
  • Liebigita
  • Uranothallit
  • Uranothallita
  • Uranothallite
  • Voglianite (in part)
    		•
    		 
    Mineral Class:
    Nitrates, Carbonates and Borates
      Uranylcarbonates ([UO2]+2 - [CO3]-2)
        Grimselite - Liebigite series
    		 
    Chemical
        Formula:    		 Ca2(UO2)(CO3)3 · 11(H2O)  
    Chemical
        Composition:
    Calcium: (Ca) 11.00%
    Carbon: (C) 4.95%
    Hydrogen: (H) 3.04%
    Oxygen: (O) 48.32%
    Uranium: (U) 32.68%
    		by weight
    Molecular
        Weight:    		 728.38 daltons (amu)
    Specific
        Radioactivity:

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

    Specific Activity Dose Rate
    Becquerels Curies milliRems/hour microSieverts/hour
    5.8496 × 1004 1.58 × 10-06 5.32 53.22

    Estimated Average Annual Exposure: 360 mRem (3.6 milliSieverts)
    Crystalography:
    System: Orthorhombic - Pyramidal
    Axial Ratios: a: 0.9537
    b: 1
    c: 0.7846
    Cell Dimensions: a: 16.703 Å
    b: 17.513 Å
    c: 13.741 Å
    Z: 8
    V: 4,019.51 Å3
    DenCalc: 2.41
    H-M Symbol: mm2
    Space Group: Bba2
    X-Ray Diffraction:
      By Intensity ( I/Io )    		 (1): 6.81 Å
    (0.9): 5.4 Å
    (0.9): 8.68 Å
    		 
    Habit:
  • Crusts
  • Crystals
    		•   
    Cleavage:
    [001]  
    [010]  
    [100] Distinct
    		 
    Fracture: Brittle - uneven  
    Moh's
        Hardness:    		 2.5 - 3  
    Density: 2.41 grams/cm3
    Color: Yellow, Greenish-yellow, Yellowish-green  
    Streak: Yellow white  
    Luster: Vitreous - Pearly  
    Diaphaneity: Transparent to Translucent  
    Pleochroism:
    (x):  
    (y:)  
    (z:)  
    		 
    Ultra Violet
        Fluorescence:
    Long Wave: Fluorescent
    Short Wave: Fluorescent
    		 
    Magnetism: Non-magnetic  
    Occurance:
  • Sandstone
    		•   
    Associated
        Minerals:

    Acanthite, Arsenopyrite, Autunite, Azurite, Barite, Becquerelite, Bismuth, Bornite, Calcite, Chalcocite, Chalcopyrite, Coffinite, Covellite, Dolomite, Erythrite, Fluorite, Galena, Goethite, Gypsum, Hematite, Malachite, Marcasite, Meta-Autunite, Metatorbernite, Molybdenite, Novácekite, Phosphuranylite, Pitchblende, Pyrite, Pyrolusite, Quartz, Rutherfordine, Safflorite, Schröckingerite, Silver, Sklodowskite, Skutterudite, Sphalerite, Torbernite, Tyuyamunite, Uraninite, Uranophane, Uranopilite, Zeunerite, Zippeite

    Mineral   -   > 40% of sites
    Mineral   -   > 20% of sites
    Minerals   -   Uranium & Thorium
    mineral links

    		These are minerals known to be found with Liebigite
    Localities:

    Uncommon

    (Liebigite localities)
    Notes:

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

    Liebigite Images

    Mas d'Alery,
    Herault, France
    Schwartzwalder Mine, Jefferson Co.,
    Colorado, USA