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xenoblast

[zen-uh-blast, zee-nuh-]

noun Mineralogy.

a crystal that forms in metamorphic rock and gets its outline from neighboring crystals.
Related formsxen·o·blas·tic, adjective
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019
Science definitions for xenoblast

xenoblast

[zĕn′ə-blăst′, zē′nə-]

A mineral that has not developed its characteristic crystalline faces and that has formed in a rock that has undergone metamorphism.
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.