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19th December 2005, 07:57 AM
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EAAF Staff
Join Date: Dec 2004
Location: Louisville, KY
Posts: 7,272
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You do bring up a good point, Sunjer. The differences in the yellowing to a dark orange are due in part to age and to a large extent to the amount of sulfer to which they are exposed. The presence of sulfer in the surrounding environment is the strongest coloring agent for elephant ivory.
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