Joliotite

 IMA-A 1974-014
Uranium 15.1.8.1
(Dana Classification Number)
(No Images) 5/F.01-20
(Strunz ID)

Jean Frédéric Joliot Irène Joliot-Curie

Property Data Remarks
Named for: Jean Frédéric Joliot (1900-1958), and Irene Joliot-Curie (1897-1956),Physicists, 1935 Nobel Laureates in Chemistry
Alternate
    Name(s):
  		•  
    Mineral Class:
    Nitrates, Carbonates and Borates
      Uranylcarbonates - [UO2]+2 - [CO3]-2
        Rutherfordine - Joliotite series
    		 
    Chemical
        Formula:    		 (UO2)(CO3) · 1.5-2H2O  
    Chemical
        Composition:
    Carbon: (C) 3.28%
    Hydrogrn: (H) 1.10%
    Oxygen: (O) 30.59%
    Uranium: (U) 65.02%
    		by weight
    Molecular
        Weight:    		 366.07 daltons (amu)
    Specific
        Radioactivity:

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

    Specific Activity Dose Rate
    Becquerels Curies milliRems/hour microSieverts/hour
    1.16392 × 1005 3.15 × 10-06 9.57 95.69

    Estimated Average Annual Exposure: 360 mRem (3.6 milliSieverts)
    Crystalography:
    System: Orthorhombic
    Axial Ratios: a: 0.7884
    b: 1
    c: 0.6106
    Cell Dimensions: a: 8.16 Å
    b: 10.35 Å
    c: 6.32 Å
    Z: 4
    V: 533.76 Å3
    DenCalc: 4.56
    H-M Symbol:  
    Space Group: P222, Pmm2
    X-Ray Diffraction:
      By Intensity ( I/Io )    		 (1): 8.09 Å
    (0.9): 3.42 Å
    (0.8): 3.18 Å
    		 
    Habit:
  • Spherical
  • Scaly
    		•   
    Cleavage:
    [001]  
    [010]  
    [100] Distinct
    		 
    Fracture:    
    Moh's
        Hardness:    		 1.5 - 2  
    Density: 4.55 grams/cm3
    Color: Lemon yellow  
    Streak: Yellow  
    Luster:    
    Diaphaneity: Translucent  
    Pleochroism:
    (x): Colorless
    (y:) Colorless
    (z:) Yellow
    		 
    Ultra Violet
        Fluorescence:
    Long Wave:  
    Short Wave:  
    		 
    Magnetism: Non-magnetic  
    Occurance:
  • Occurs as crusts on 'limonite' and barite at uranium deposits
    		•   
    Associated
        Minerals:

    Acanthite, 'Agardite', Arsenopyrite, Arsenuranospathite, Arsenuranylite, Autunite, Bassetite, Beidellite, Bergenite, Beryl, Billietite, Bismuth, Bornite, Calcite, Chalcopyrite, Chrysocolla, Clarkeite, Coffinite, Compreignacite, Cuprosklodowskite, Curite, Dewindtite, Digenite, Dolomite, Fluorite, Fourmarierite, Galena, Goethite, Gold var: Electrum, Gorceixite, Gypsum, Hematite, Ianthinite, Johannite, Kamotoite-(Y), Kaolinite, Kasolite, Liebigite, Malachite, Meta-Autunite, Meta-Uranocircite, Metaheinrichite, Metakahlerite, Metanovácekite, Metatorbernite, Metazeunerite, Molybdenite, Monazite-(Ce), Muscovite, Nickeline, Novácekite, Phosphuranylite, Pyrite, Pyrolusite, Pyrrhotite, Quartz, Rammelsbergite, Rutherfordine, Safflorite, Saléeite, Schoepite, Selenium, Silver, Soddyite, Studtite, Torbernite, Umangite, Urancalcarite, Uraninite, Uranocircite, Uranophane, Uranophane-beta, Uranopilite, Uranosilite, Uranospathite, Uranotungstite, Vandendriesscheite, Vanmeersscheite, Vyacheslavite, Weeksite, Zeunerite, Zippeite

    Mineral   -   All of the sites
    Mineral   -   > 50% of sites
    Mineral   -   > 33% of sites
    Minerals   -   Uranium & Thorium
    mineral links

    		These are minerals known to be found with Joliotite
    Localities:

    Very rare

    Joliotite Localities
    Notes:

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

    Crystals are probably metamic.