Lithic Sourcing

Archeologists guide to toolstone sources.

Georgetown flint is a fairly localized material from the Edwards Limestone formation that occurs in primary context in Williamson County.

Georgetown Blue flint

Foraker chert

Penter’s (Devonian)

Gray or Blue Tool Stone

lithicsourcing@yahoo.com

Novaculite is a sedimentary rock composed mostly of microcrystalline quartz and is a recrystallized variety of chert. It is dense, hard, white to grayish-black, pink, or redish in color, translucent on thin edges, and has a dull to waxy luster. It typically breaks with a smooth conchoidal (shell-like) fracture. The word novaculite is derived from the Latin word novacula, meaning razor stone.

Avon

Coshoton Flint

Also gray, blue, white, or green.  Sometimes mottled or banded.  Jack Ray has documented 9 types.  Don Dickson has described over 20 Reed’s Spring variations.