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Most pottery that is found today does not date back so far. While I can identify an ancient piece and tell you its value, I can help you--via my tips--show you how to spot a valuable ceramic and to identify pottery marks from more recent history.
One of the easiest ways to learn about a piece of pottery is to learn how old it is.
If the clay is older than the time of firing, the carbonate age will also be older than the time of firing.
In trees, this is only the outer rings, roots, twigs, small branches, bark, nuts, etc.Otherwise, it will be discarded upon completion of the analysis.More details can be found on the Sample Retention and Return of Excess Materials page.However, it may be actually somewhat older if recent organic materials have been incorporated into the pot due to mobilized humic acids.3 – Date the extractable tempering agents Dating organic tempering agents is possible when the organic material is either charred or the temperature of the firing process was not hot enough to burn it away.Shell temper will be unaffected for firing temperatures less than 600°C.
The lab is more than happy to extract the residue then return the sherd to clients as requested.