Deliensite

 IMA-A 1996-013
Uranium 31.8.2.2
(Dana Classification Number)
(No Images) 6/D.20-85
(Strunz ID)

Property Data Remarks
Named for: Dr. Michel Deliens (1939-), Royal Belgian Instatute of Natural Sciences, Brunssels, researcher on uranium bearing minerals
Alternate
    Name(s):
  		•  
    Mineral Class:
    Sulfates,Chromates,Molybdates and Tungstates
      Uranylsulfates [UO2]+2 - [SO4]-2
        Uranopilite - Rabejacite series
    		 
    Chemical
        Formula:    		 Fe2+(UO2)2(SO4)2(OH)2 · 3H2O  
    Chemical
        Composition:
    Hydrogen: (H) 0.92%
    Iron: (Fe) 6.37%
    Oxygen: (O) 31.05%
    Sulfur: (S) 7.32%
    Uranium: (U) 54.34%
    		by weight
    Molecular
        Weight:    		 876.09 daltons (amu)
    Specific
        Radioactivity:

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

    Specific Activity Dose Rate
    Becquerels Curies milliRems/hour microSieverts/hour
    9.7267 × 1004 2.63 × 10-06 1.34 13.42

    Estimated Average Annual Exposure: 360 mRem (3.6 milliSieverts)
    Crystalography:
    System: Orthorhombic
    Axial Ratios: a: 0.9775
    b: 1
    c: 0.4241
    Cell Dimensions: a: 15.908 Å
    b: 16.274 Å
    c: 6.903 Å
    Z: 4
    V: 1,787.10 Å3
    DenCalc: 3.26
    H-M Symbol:  
    Space Group: Pnnm or Pnn2
    X-Ray Diffraction:
      By Intensity ( I/Io )    		 (1): 5.9 Å
    (0.81): 7.95 Å
    (0.71): 3.941 Å
    		Deliensite
    Crystal
    Habit:
  • Crystals up to 3 mm
  • Spherical aggregates
  • Aggregates or clusters of crystals
    		•   
    Cleavage:
    [001]  
    [010]  
    [100] Perfect
    		 
    Fracture: Conchoidal
    Weak - hard to handle without causing serious harm or damage.    		  
    Moh's
        Hardness:    		 2  
    Density: 3.268 grams/cm3
    Color: Pale yellow, Greyish-white  
    Streak: White  
    Luster: Vitreous  
    Diaphaneity: Transparent to Translucent  
    Pleochroism:
    (x):  
    (y:)  
    (z:)  
    		 
    Ultra Violet
        Fluorescence:
    Long Wave:  
    Short Wave:  
    		 
    Magnetism: Non-magnetic  
    Occurance:
  • Oxidation zone of an uranium deposit.
    		•   
    Associated
        Minerals:

    Aragonite, Autunite, Azurite, Barite, Bayleyite, Bournonite, Calcite, Cerussite, Chalcopyrite, Copper, Dolomite, Galena, Gypsum, Ianthinite, Malachite, Marcasite, Masuyite, Meta-Autunite, Metatorbernite, Metazeunerite, Novácekite, Pyrite, Quartz, Rabejacite, Saléeite, Schoepite, 'Sodium Uranospinite', Sphalerite, Tetrahedrite, Torbernite, Uranopilite, Wurtzite, Zellerite, Zeunerite, Zippeite

    Mineral   -   All of the sites
    Mineral   -   > 67% of sites
    Minerals   -   Uranium & Thorium
    mineral links

    		These are minerals known to be found with Deliensite
    Localities:

    Extremely rare

    Deliensite Localities
    Notes:

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