- a rock or crystal engulfed by magma and retained as an inclusion in the resulting igneous rock.
Origin of xenocryst
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
- a crystal included within an igneous rock as the magma cooled but not formed from it
C20: from xeno- + cryst (al)
- A crystal foreign to the igneous rock in which it occurs. Xenocrysts usually form during metamorphism. Compare xenolith.
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