hornfels
[hawrn-felz]
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noun
a dark, fine-grained metamorphic rock, the result of recrystallization of siliceous or argillaceous sediments by contact metamorphism.
Origin of hornfels
Dictionary.com Unabridged
Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019
Examples from the Web for hornfels
Historical Examples of hornfels
From diabases, basalts, andesites and other igneous rocks a third type of hornfels is produced.
hornfels
noun
Word Origin for hornfels
German: literally, horn rock
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
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hornfels
[hôrn′fĕlz′]
The American Heritage® Science Dictionary
Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.