a crystal not derived from the magma that gave rise to the igneous rock containing it.
| 单词 | θ70600 |
| 释义 | the world > matter > chemistry > crystallography (general) > crystal (general) > crystal types > [noun] > specifically by method of crystallization (3) xenocryst1894 a crystal not derived from the magma that gave rise to the igneous rock containing it. metacryst1913 A large crystal formed in a metamorphic rock by recrystallization, surrounded by a finer-grained groundmass of other metamorphic crystals; a… porphyroblast1920 A relatively large recrystallized grain occurring in a finer groundmass in a metamorphic rock. |
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