Meta-Lodèvite

 IMA-A 1972-014
Uranium 40.2a.18.1
(Dana Classification Number)
(No Images) 7/E.02-80
(Strunz ID)

Property Data Remarks
Named for: the type locality: Rivieral U prospect, near Lodève, Hérault, France.
Alternate
    Name(s):
  • Metalodevite
    		•   
    Mineral Class:
    Phosphates, Arsenates and Vanadates
      Uranylphosphates and Uranylvanadates with
    [UO2]2+ - [PO4 | AsO4]3- and
    [UO2]2+ - [V2O8]6-
        Meta-Autunite group
    		 
    Chemical
        Formula:    		 Zn(UO2)2(AsO4)2 · 10H2O  
    Chemical
        Composition:
    Arsenic: (As) 14.09%
    Hydrogen: (H) 1.90%
    Oxygen: (O) 33.10%
    Uranium: (U) 44.77%
    Zinc: (Zn) 6.15%
    		by weight
    Molecular
        Weight:    		 1,063.44 daltons (amu)
    Specific
        Radioactivity:

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

    Specific Activity Dose Rate
    Becquerels Curies milliRems/hour microSieverts/hour
    8.0131 × 1004 2.17 × 10-06 1.12 112.30

    Estimated Average Annual Exposure: 360 mRem (3.6 milliSieverts)
    Crystalography:
    System: Tetragonal - Dipyramidal
    Axial Ratios: a: 1
    c: 2.40223
    Cell Dimensions: a: 7.16 Å
    c: 17.2 Å
    Z: 2
    V: 881.77 Å3
    DenCalc: 4.01
    H-M Symbol: 4/m
    Space Group: P42/m
    X-Ray Diffraction:
      By Intensity ( I/Io )    		 (1): 3.59 Å
    (0.7): 8.66 Å
    (0.6): 2.98 Å
    		 
    Habit:
  		•  
    Cleavage:
    [???] Perfect
    		 
    Fracture:    
    Moh's
        Hardness:    		 2 - 3  
    Density: 4 grams/cm3
    Color: Pale yellow, Olive-green  
    Streak: White  
    Luster: Vitreous  
    Diaphaneity: Transparent to Translucent  
    Pleochroism:
    (x): Colorless
    (y:) Colorless
    (z:) Colorless
    		 
    Ultra Violet
        Fluorescence:    		 Fluorescent  
    Magnetism: Non-magnetic  
    Occurance:
  		•  
    Associated
        Minerals:

    Adamite, Aragonite, Autunite, Azurite, Barite, Bornite, Calcite, Cerussite, Chalcocite, Chalcopyrite, Chrysocolla, Coffinite, Copper, Cuprite, Dolomite, Erythrite, Galena, Goethite, Graphite, Gypsum, Kahlerite, Löllingite, Malachite, Marcasite, Masuyite, Meta-Autunite, Metatorbernite, Metazeunerite, Molybdenite, Novácekite, Pharmacolite, Pharmacosiderite, Pyrite, Quartz, Rabejacite, Rhodochrosite, Schoepite, Silver, Sklodowskite, Sphalerite, Sulphur, Tetrahedrite, Torbernite, Trögerite, Umohoite, Uraninite, Uranophane, Uranophane-beta, Uranopilite, Wulfenite, Wurtzite, Zeunerite, Zippeite, Znucalite

    Mineral   -   All of the sites
    Mineral   -   > 80% of sites
    Mineral   -   > 60% of sites
    Minerals   -   Uranium & Thorium
    mineral links

    		These are minerals known to be found with Metalodevite
    Locations:

    Rare

    Metalodevite Locations
    Notes:

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

    Crystals are probably metamic.

    Metalodevite can be confused with meta-Zeunerite; X-ray and chemical tests are best for verification.