L-256 (St Louis Chert): Not a direct collection from outcrop; Provenience includes samples collected from a Prehistoric quarry, collected from an archaeological context; Not an unknown collection ...
L-248 (St. Louis Chert): Unknown collection procedure. Collection includes raw material, outer surface, surrounding matrix, and naturally-weathered specimens. l-248 (St. Louis Chert) St. Louis Chert, ...
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