Hornfels is the group name for a set of contact metamorphic rocks that have been baked and hardened by the heat of intrusive igneous masses and have been rendered massive, hard, …

The meaning of HORNSTONE is a mineral that is a variety of quartz much like flint but more brittle.

2018年5月30日 · Hornfels is a metamorphic rock formed when magma heats and recrystallizes the original rock. Pressure is not a factor in its formation. The name "hornfels" means …

2023年4月23日 · Hornfels is a fine grained metamorphic rock and It is the group for a series of contact metamorphic rocks that have been baked under high temperatures by the heat of …

Hornfels are a type of metamorphic rock, having a dense, compact, and fine grained structure. The formation of these rocks is the result of contact metamorphism of shales and basalts. In …

2021年12月26日 · Hornfels, more commonly referred to as horn rock, is a very hard, fine-grained metamorphic rock. It is formed by the recrystallization of the original rock, which can be …

Hornstone —a general term for a compact, tough, siliceous rock having a splintery or conchoidal fracture such as a hornfels; the term has also been used to describe flint and chert. Keralite …

The English translation of the German designation Hornstein.

Hornfels is a metamorphic rock formed by the contact between mudstone / shale, or other clay-rich rock, and a hot igneous body, and represents a heat-altered equivalent of the original …

See examples of HORNSTONE used in a sentence.