L-988 (Flint River Chert): Provenience includes gravel deposits. Not a collection from archaeolgoical context. Collection includes raw material and modern flint-knappers' work. L-988 (Flint River ...
L-1281 (Flint River Chert): Collection includes heat-treated specimens. L-1281 (Flint River Chert): map included; H/T 450 degrees F-8 hours; Chert: Caramel colored, high quality, chalky cortex. Flint ...
The Rhynie chert, renowned for its exceptional preservation, offers an unparalleled window into early terrestrial ecosystems dating back to the Early Devonian period, over 400 million years ago. The ...
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