perthite

 


Chemical formula: See ALBITE

Status: NON APPR

Display mineral: NON

 

Luminescence:

Longwave UV (365nm) colors:

         


Red , Violet red ,

Shortwave UV (254nm) colors:

         


Red , Violet red ,

 

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

No data

Comments:

An intergrowth of albite or oligoclase with a microcline host, occasionally also with a orthoclase host. The intergrowths or exsolution lamellae of the albite are visible as white lines coursing through the K feldspar groundmass. Perthite is albite exsolution areas grown in a microcline crystal and antiperthite is microcline exsolved in albite.

Common in granite pegmatites.

Activator(s) and spectrum:

No data

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:

Mineralogical reference on the Internet:

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

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

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