a fine-grained metamorphic rock usually formed at shallow depths
Origin of hornfelsGer, horn rock from horn, horn + fels, rock: see fell
A fine-grained metamorphic rock composed of quartz, feldspar, mica, and other minerals, formed by the metamorphism of sedimentary rocks from heat associated with magma.
Origin of hornfelsGerman Horn horn ; see hornblende . Fels rock, cliff ( from Middle High German vels ) ( from Old High German felis )
(countable and uncountable, plural hornfelses)
German, meaning "horn stone", after its frequent association with glacial "horn peaks" in the Alps.