Calcurmolite

 IMA-GP
Uranium 49.3.1.1
(Dana Classification Number)
(No Images) 6/G.06-10
(Strunz ID)

Property Data Remarks
Named for: Its Calcium, Uranium and Molybdenum content
Alternate
    Name(s):
  		•  
    Mineral Class:
    Sulfates,Chromates,Molybdates and Tungstates
      Uranylmolybdates with [UO2]4+ - [MoO4]2-
        Deloryite - Iriginite series
    		 
    Chemical
        Formula:    		 Ca(UO2)3(MoO4)3(OH)2 · 8-11H2O  
    Chemical
        Composition:
    Calcium: (Ca) 2.57%
    Hydrogen: (H) 1.55%
    Molybdenum: (Mo) 18.42%
    Oxygen: (O) 31.75%
    Uranium: (U) 45.71%
    		by weight
    Molecular
        Weight:    		 1,562.16 daltons (amu)
    Specific
        Radioactivity:

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

    Specific Activity Dose Rate
    Becquerels Curies milliRems/hour microSieverts/hour
    8.1824 × 1004 2.21 × 10-06 1.14 113.82

    Estimated Average Annual Exposure: 360 mRem (3.6 milliSieverts)

    Crystalography:
    System: Monoclinic
    Axial Ratios: a:  
    b:  
    c:  
    Cell Dimensions: a:   Å
    b:   Å
    c:   Å
    Z:  
    V:   Å3
    DenCalc:  
    H-M Symbol:  
    Space Group:  
    X-Ray Diffraction:
      By Intensity ( I/Io )    		 (1): 7.76 Å
    (0.7): 8.41 Å
    (0.6): 3.9 Å
    		 
    Habit:
  • Prismatic - crystals up to 3 mm
  • Massive
  • Lamellar
    		•   
    Cleavage:
    [001]  
    [010]  
    [100]  
    		 
    Fracture:    
    Moh's
        Hardness:    		    
    Density:   grams/cm3
    Color: Honey-yellow  
    Streak: Yellow  
    Luster:    
    Diaphaneity:    
    Pleochroism:
    (x): Colorless
    (y:) Pale yellow
    (z:) Yellow
    		 
    Ultra Violet
        Fluorescence:
    Long Wave:
    Short Wave: Bright yellow green
    		 
    Magnetism: Non-magnetic  
    Occurance:
  • Oxidation zone of a U-Mo deposit.
    		•   
    Associated
        Minerals:

    Aragonite, Autunite, Azurite, Barite, Bornite, Calcite, Chalcocite, Chalcopyrite, Chrysocolla, Copper, Cuprite, Cuprosklodowskite, Galena, Gypsum, Ianthinite, Idaite, Iriginite, Jarosite, Kahlerite, Löllingite, Malachite, Masuyite, Metalodevite, Molybdenite, Novácekite, Pyrite, Quartz, Rabejacite, Saléeite, Scheelite, Schoepite, Silver, 'Sodium Uranospinite', Sphalerite, Stromeyerite, Studtite, Tengchongite, Umohoite, Uraninite, Uranophane-beta, Uranopilite, Wulfenite, Zeunerite, Zippeite

    Mineral   -   > 57% of sites
    Mineral   -   > 29% of sites
    Minerals   -   Uranium & Thorium
    mineral links

    		These are minerals known to be found with Calcurmolite
    Localities:

    Very rare

    Calcurmolite Localities
    Notes:

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