xenoblast

American  

[zen-uh-blast, zee-nuh-] / ˈzɛn əˌblæst, ˈzi nə- /

noun

Mineralogy.

1. a crystal that forms in metamorphic rock and gets its outline from neighboring crystals.

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xenoblast Scientific  

/ zĕn′ə-blăst′,zē′nə- /

1. A mineral that has not developed its characteristic crystalline faces and that has formed in a rock that has undergone metamorphism.

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Other Word Forms

• xenoblastic
  adjective

Etymology

Origin of xenoblast

First recorded in 1920–25; xeno- ( def. ) + -blast ( def. )