hornfels

Etymology
Borrowed from, literally "horn stone", after its frequent association with glacial "horn peaks" in the Alps.

Noun

 * 1) Any of a series of contact metamorphic rocks that have been baked and indurated by the heat of intrusive igneous masses and rendered massive, hard, splintery, and in some cases exceedingly tough and durable.

Translations

 * Catalan: cornubianita
 * French:
 * German: Hornfels
 * Italian: cornubianite
 * Korean: 혼펠스