The experiment has run for 20 months now. On October 10, 2016 I took the two spalls and a freshly knapped point and placed them on a rock in full sunlight. The pieces are developing a patina in this short period of time simply by leaving them in open air exposed to the sunlight. The first picture is the original and the second picture was taken today. Now I plan to bury them in a wet area with black soil. I will give you another update next year.
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Tiger Chert Patination Experiment Update
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Awesome experiment RonTN formerly CT Visit our store http://stores.arrowheads.com/store.p...m-Trading-Post
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