Hornfels

Description

A group designation for nonfoliated often banded, fine-grained, metamorphic rocks containing quartz, feldspar, and other minerals. Hornfels is typically formed by thermal metamorphism resulting in a hard, durable rock.

Synonyms and Related Terms

corneanas (Port.)

Authority

• Submitted information Comment: José Delgado Rodrigues, LNEC, 2009

• Wikipedia, the free encyclopedia, at http://www.wikipedia.com Comment: Hornfels (accessed March 2010)