FACTOID # 89: In the 1990's, nearly half of all arms exported to developing countries came from the United States of America.
 
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Encyclopedia > Phenocrysts

A phenocryst is a relatively large and usually conspicuous crystal formed in the mass of a porphyritic igneous rock. For example, olivine may form the primary phenocrysts of some materials, and as such is used to define the subtype of that material (e.g., an 'olivine felsite').


Phenocrysts are commonly found in materials such as felsite and andesite.


  Results from FactBites:
 
Phenocryst Focus (2807 words)
Phenocryst speaks from within your mind as well as conveys a sense of joy empathically.
Phenocryst says in the form of thoughts, 'We must call to it.
Phenocryst 's thoughts become your own, a feeling of joy overwhelms you, 'Because of you we can at last speak with our maker.
  More results at FactBites »


 

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