L-23 (Little Colorado River Gravel Chert, Petrified Wood, Agate, Chalcedony): Not a direct collection from outcrop; Provenience includes samples from gravel deposits; Collection includes raw material, ...
L-13 (Little Colorado River Gravel Chert/Petrified Wood/Agate/Chalcedony): Not a direct collection from outcrop. Provenience includes samples from gravel deposits. Not a collection from archaeological ...
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