Calcioursilite

 Possibly a valid mineral species
Uranium
(No Images)

Property Data Remarks
Named for: Its Calcium, Uranium and Silicate content
Alternate
    Name(s):
  • Ca-ursilite
  • Ca-ursilit
  • Calcium-ursilite
  • Calcioursilit
  • Calcioursilita
    		•   
    Mineral Class:
     
       
         
    		 
    Chemical
        Formula:    		 Ca4(UO2)4(Si2O5)5(OH)6 · 15H2O  
    Chemical
        Composition:
    Calcium: (Ca) 6.990%
    Hydrogen: (H) 1.582%
    Oxgen: (O) 37.670%
    Silicon: (Si) 12.245%
    Uranium: (U) 41.513%
    		by weight
    Molecular
        Weight:    		 2293.543 daltons (amu)
    Specific
        Radioactivity:

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

    Specific Activity Dose Rate
    Becquerels Curies milliRems/hour microSieverts/hour
    × 10 × 10    

    Estimated Average Annual Exposure: 360 mRem (3.6 milliSieverts)
    Crystalography:
    System:    
    Axial Ratios: a:  
    b:  
    c:  
    Cell Dimensions: a:   Å
    b:   Å
    c:   Å
    Z:  
    a:   °
    b:   °
    g:   °
    V:   Å3
    DenCalc:  
    H-M Symbol:   -
    Space Group:   -
    X-Ray Diffraction:
      By Intensity ( I/Io )    		 (1):   Å
    (0.):   Å
    (0.):   Å
    		 
    Habit:
  		•  
    Cleavage:
    [001]  
    [010]  
    [100]  
    		 
    Fracture:    
    Moh's
        Hardness:    		    
    Density:   grams/cm3
    Color: Lemon yellow  
    Streak:    
    Luster: Earthy  
    Diaphaneity:    
    Pleochroism:
    (x):  
    (y:)  
    (z:)  
    		 
    Ultra Violet
        Fluorescence:
    Long Wave:  
    Short Wave:  
    		 
    Magnetism: Non-magnetic  
    Occurance:
  • Forms in granite-porphyry
    		•   
    Associated
        Minerals:

    Calciouranoite, Calcite, Gypsum, Kaolinite, Kasolite, Magnioursilite, Sklodowskite, Uranophane

    Minerals   -   Uranium & Thorium
    mineral links

    		These are minerals known to be found with Calcioursilite
    Localities:

    Extremely rare

    Calcioursilite Localities
    Notes:

    Radioactive a- and b-particles, g-rays.

    Crystals are probably metamic.