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Cancrinite - Vishnevite

Foyaite with replacement texture
Katzenbuckel, Odenwald, Germany
Source: Thin section collection Steinmann-Institut, Universität Bonn
Photos: MMR
Comments and references:
Replacement of nepheline by cancrinite
 
  PPL

Variable crystal orientations (A)
Variable crystal orientations (B)
 
 
  +Pol

Variable crystal orientations (A)
Variable crystal orientations, +1λ (A)
Variable crystal orientations (B)
Variable crystal orientations, +1λ (B)
 

  Additional images

  Image comments

   
Pseudomorph of cancrinite aggregate after nepheline (basal section)
 

Width of view   Pol orientation
 
 200 μm
   
 W-E
     

Cancrinite - Vishnevite
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