My cameo is at least 125 to 150 yrs old. How do I know if the material is conch or ivory?
Md Ariful Islam
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Dr. Md Rushad Rahman
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If it is ivory, it will have become yellow by now; the darker the colour, the older the ivory (be careful some people purposefully colour it). You can also burn a needle till it is red/white hot and poke it -- if it is genuine there will be no mark.
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