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Pumpellyite

Meta-alkalibasalt. Pumpellyite forms spherulitic aggregates in completely altered groundmass
Evia, NW Cyclades, Greece
Source: Thin section collection T. Reinecke
Photos: MMR
Comments and references:
 
  PPL

Mineral aggregate, variable crystal orientations
 
 
  +Pol

Mineral aggregate, variable crystal orientations
Mineral aggregate, variable crystal orientations, +1λ
 

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Width of view   Pol orientation
 
 1 mm
   
 W-E
     

Pumpellyite
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