Definitions
from The Century Dictionary.
- In petrography, having the characters of, containing, or relating to, phenocrysts.
Etymologies
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Examples
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Quartz in groundmass does not appear to have nucleated directly on phenocryst, but is in optical continuity with it. (f) Primary vapor-rich fluid inclusion in phenocrystic quartz.
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Feldspar compositions in the groundmass are slightly more Or-rich than the phenocrystic feldspar, which ranges from An10Or15Ab75 to about An1Or44Ab55.
Granophyre.html 1998
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