poikilitic

adjective

poi·​ki·​lit·​ic

¦pȯikə¦lid‧ik

variants or poecilitic

¦pēsə¦-

: of, relating to, or consisting of a structural pattern in igneous rocks in which a crystal of one mineral encloses smaller unoriented grains of another mineral so that a lustrous mottling effect is produced

Word History

Etymology

poecil- + -itic

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