28 February, 2013

Cracked starch

Just today, I finished to look at residue samples from stone artefacts at the Yoshioka sites. As the result, I found starch granules extracted from some of my sampled stone tools.

The following photos show a cracked starch granule. Due to this kind of starch condition, we cannot identify its plant species.

non-polarized
cross-polarized


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