Thesaurus Term/Concept: HORNSTONE

Identifier	-432
Class	OBJECT MATERIAL
Status	Candidate
Index?	Yes
Scope Note	The group designation for a type of fine-grained metamorphic rock formed by the action of heat on clay rocks.

Broader Terms/Concepts (1)

Related Terms/Concepts (0)

Narrower Terms/Concepts (0)

Instances/Examples (1)

Context	Record
Find Material	POLISHED AXEHEAD (Neolithic - 4000 BC to 2401 BC)