Anyone who trawls second hand shops, frequents charity stores, is an addict of garage sales or is a general hunter and gatherer would enjoy this brief article.
If you scroll down the page on this link you will find and interesting piece on Ivory and bone substitutes. It covers the types of substitutes and a bit of information on cleaning.
Last week i visited one of our rock and gem shops and saw Mammoth bone chunks for sale–very rough, very fragmented and oh so sad…..