Home >                  	Term: bird's-eye porphyry  
bird's-eye porphyry
A name given by prospectors and miners to a fine-grained igneous rock having small phenocrysts, particularly if they are quartz, from a fancied resemblance to birds' eyes.
- Part of Speech: noun
 - Industry/Domain: Mining
 - Category: General mining; Mineral mining
 - Government Agency: USBM
 
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 Creator
- ed.young
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(Milwaukee, United States)