URAMARSITE

 


Chemical formula: (NH4,H3O)2(UO2)2(AsO4, PO4)2.6H2O

Family: Phosphates, Arseniates, Vanadates

Status: IMA-A

Crystal system : Tetragonal

Display mineral: NON

 

Luminescence:

Shortwave UV (254nm) colors:

    


Green ,

 

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Phosphorescence (in the common sense of the term) observable with the naked eye:

No data

Comments:

Related to meta-autunite group;
arsenic analogue of uramphite;
Formed by oxydation of pichblende-sulfide mineralization. 

Associated with calcite, arsenopyrite, pyrite, galena, chistyakovaite, natrouranospinite, scorodite, arseniosiderite, mansfieldite, metazeunerite and trogerite. 

Activator(s) and spectrum:

Activator(s): (UO2)2+ (ion Uranyle) intrinsèque ,

No spectrum yet

Best localities for fluorescence (*):

(*)The data are not exhaustive and are limited to a few remarkable localities for fluorescence

Bibliographic reference for luminescence:

Reference for luminescence on the Internet:

Mineralogical reference on the Internet:

  http://www.mindat.org/show.php?name=Uramarsite

  http://webmineral.com/data/Uramarsite.shtml

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