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in Boston, described an age-old test that ivory lovers have used to distinguish their ivory from plastic pretenders. The test consists of heating up the point of a needle until it's red-hot and then pricking what you believe is your ivory carving.
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www.pbs.org/wgbh/antiquesfyi/tips/damagedone/index.html
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･ Closely scrutinize the surface using a magnifying glass or even a microscope. Ivory, bone, and plastic... ･ Ask the following questions: Is the surface lined or smooth? Absolutely smooth surfaces are a characteristic... ･ Feel around t...
http://www.wikihow.com/Tell-Ivory-from-Bone
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Books Dealing with the Identification of Ivory ... What Is Ivory?; Ivory is the teeth of animals. "True" ivory comes from elephants and mammoth; however, the term is generally applied to the tusks of other mammals, and some synthetics. Chemically, ivory is similar to bone and antler, and comprises a collagen matrix with...
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www.uniclectica.com/conserva/ivory1.html
www.uniclectica.com/conserva/ivory1.html
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I repeatedly hear people either tell me or ask me about the so-called "hot needle test." THERE IS NO SUCH THING. ... There is no single test that will confirm that an object is ivory and ALSO reveal the type of ivory. There are ways, however, to identify ivory.
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www.ivoryhound.com/articles_testing_for_ivory.htm
www.ivoryhound.com/articles_testing_for_ivory.htm
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A test designed to reveal where ivory has come from successfully pinpoints the geographic origins of hundreds of tusks seized in Singapore ... A DNA test that reveals where ivory has come from has been used to pinpoint the geographic origins of hundreds of tusks seized from poachers, providing law enforcement agencies...
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environment.newscientist.com/article/dn11262-ivory-dna-...
environment.newscientist.com/article/dn11262-ivory-dna-test-takes-poachers-to-tusk.html
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Illegal ivory tusks seized in Singapore in 2002 give reveal the scale of the poaching problem (Image: PNAS) ... A DNA test that reveals where ivory has come from has been used to pinpoint the geographic origins of hundreds of tusks seized from poachers, providing law enforcement agencies with valuable clues.
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www.newsvine.com/_news/2007/02/26/588777-ivory-dna-test...
www.newsvine.com/_news/2007/02/26/588777-ivory-dna-test-takes-poachers-to-tusk
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A defeat against an Ivory Coast side including Chelsea star Didier Drogba in a friendly international on Wednesday may be the last nail in the coffin of Austrian team coach Josef Hickersberger, national media predicted.
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www.digitaljournal.com/article/240411/Ivory_Coast_test_...
www.digitaljournal.com/article/240411/Ivory_Coast_test_last_chance_for_Austrian_team_coach_
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The researchers adapted their genetic test to ivory, using African elephant tusks that were at least 10-20 years old. Even though tusks are teeth, they still contain some DNA and the researchers found that a small amount of ivory (120 mg, or a cubic centimeter) was enough for the test.
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www.sciencedaily.com/releases/2003/11/031126065807.htm
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The Ultimate Source for Asian Art.Netsuke Snuff Bottles Jade Dragons Secure online ordering ... If it doesn't melt, we narrowed it down to Bone or Ivory. There should be no fear of damaging the piece using this method because Ivory will be undamaged by this test, and if it melts, it wasn't worth much anyway.
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asianartsearch.com/refivory.htm
asianartsearch.com/refivory.htm
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