#12
community.ebay.com
Rhinoceros tusk $110/grams
The rhino tusk is only this expensive as it is believed that it cures cancer. This is the main reason that now the species are endangered. In 2013 the extinction of the western black rhinoceros has been announced, but also critically endangered the northern white rhinoceros and the Java rhino too, that, based ont he estimations, have only about 30-40 altogether in Indonesia.
