From WebRef.org
Revision as of 10:00, 5 September 2019 by Webref (talk | contribs)

(diff) ← Older revision | Latest revision (diff) | Newer revision → (diff)
Jump to: navigation, search

a fragment removed from a core or nucleus of cryptocrystalline or fine-grained rock by percussion or pressure. May be used as a tool with no further deliberate modification, may be retouched, or may serve as a preform for further reduction.

Sponsor: Central Park Walking Tours