Laumontite on Prehnite 7887 photo:J.Buss
 
Laumontite on Prehnite #7887   photo: J.Buss

  Laumontite: Hydrated Calcium Aluminum Tectosilicate (Zeolite)  
  Prehnite: Calcium Aluminum Phyllosilicate Hydroxide  
  Patterson New Jersey  

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