Phenocryst vs Macrocryst - What's the difference?
phenocryst | macrocryst | Related terms |
(mineralogy) any relatively large crystal embedded in a more fine-grained or glassy igneous rock
(mineralogy) A relatively large crystal occurring in a mineral deposit, usually defined as one between 0.5 mm and 10 mm in size.
*{{quote-journal, 2000, date=March 31, Bradley R. Hacker et al., Hot and Dry Deep Crustal Xenoliths from Tibet, Science
, passage=The sanidines were loose macrocrysts and their difference in ages suggests that they were derived from two separate flows. }}
Macrocryst is a related term of phenocryst.
In mineralogy terms the difference between phenocryst and macrocryst
is that phenocryst is any relatively large crystal embedded in a more fine-grained or glassy igneous rock while macrocryst is a relatively large crystal occurring in a mineral deposit, usually defined as one between 0.5 mm and 10 mm in size.phenocryst
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(wikipedia phenocryst) (en noun)macrocryst
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