BOBCOOKITE

 


Chemical formula: NaAl(UO2)2(SO4)4 18H2O

Family: Sulfates

Status: IMA-A

Crystal system : Triclinic

Display mineral: NON

 

Luminescence:

Longwave UV (365nm) colors:

    


Green ,

Intensity LW:Medium

Frequency LW:Always

Midwave UV (320nm) colors:

    


Green ,

Intensity MW:Medium

Frequency MW:Always

Shortwave UV (254nm) colors:

    


Green ,

Intensity SW:Strong

Frequency SW:Always

 

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

No data

Comments:

Bobcookite fluoresces bright greenish white under both long- and short-wave UV light but stronger under short-wave). 

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:

 

Images

 

Mineralogical reference on the Internet:

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

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

Internet Search:

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Note: While all due attention has been paid to the implementation of the database, it may contain errors and/or accidental omissions. By nature, the database will always be incomplete because science always evolves according to new analysis.
A request providing no result means only that no such reference exists in the database, but it does not mean that what you are looking for does not exist, just not to our knowledge. If you think you have found an error or omission, please let us know via the contact page being sure to cite the source of information.