Definitive Test for Rhino Horn Please

Tim Simmons · 25th March 2008, 10:11 PM

It should burn in the same that your fingernail cuttings burn. A sort of melting burn unlike charring of wood. I have two African staffs which I believe are Rhino horn. The ends are carved as people and holes have been made for the eyes, set with stone in one and glass beads in the other. These holes have been made by something hot poked into the material, when you look close with magnification you can see the edges are a melted burn like burning fingernails. I hope that helps, the trouble is finding a place to make a test?

Just realised all? horn is keratin. If it is solid and 1m long it not so difficult. Rhinos can grow horn up to 2m. That would look huge as a stick in your hands. Stick it on the bonnet of a small range rover motor car and it will look a lot more modest.

This mention stuff about length if you read carefully.
http://www.honoluluzoo.org/white_rhinoceros.htm

katana · 25th March 2008, 10:51 PM

Hi Amuk,

perhaps these pictures will also help....

Regards David

.

spiral · 25th March 2008, 11:42 PM

Quote:

Originally Posted by Tim Simmons

It should burn in the same that your fingernail cuttings burn.
Just realised all? horn is keratin. ]

Yep all horn contains keratin Tim, when burnt or if had boiling water poured over it most buffalo horn smells like an old farmyard full of manure & burnt hair. The same is true of rhino.

Thats a great picture Katana, shows the "orange peel" end grain structure well.

Sadley the fiberous side structure appearance is found on many horns that arnt rhino. I find one has to find where the grain runs out to get a true identyfying piece. But as Rhino is solid it never needs a buttcap on the handle anyway.

It would be great to find a quick & reliable test!

Spiral

asomotif · 26th March 2008, 10:49 AM

Quote:

It should burn in the same that your fingernail cuttings burn.

I have not yet requested this at the auctionhouse yet, but I assume they will have a problem with me setting their unsold item on fire

Personally I am not very fond of rhino, indeed because it is not always easy to recognize. But also I am more inpressed by craftmenship of the carver, wheter it is in rhino, buffalo, ivory or wood.
The pieces I have seen where complete horns decorated by the chinese, and on those pieces you can indeed easily see the grain/hair structure.

Willem

Tim Simmons · 26th March 2008, 06:45 PM

Willem, I agree wholeheartedly with you that the quality art and artistic expression does not depend on the intrinsic value put on the material it is made from. Market forces are not always influenced by subtleties. This can be to your advantage sometimes.

katana · 26th March 2008, 10:13 PM

A definitive test ....but unfortunately too expensive and slightly distructive.
It relies on DNA analysis, if it was practical you would not only know that your hilt is definately Rhino .....but also the species, the type of food it ate and the region where your 'horn hilt' roamed

http://nationalzoo.si.edu/Publicatio..._Forensics.cfm

Regards David

spiral · 26th March 2008, 11:27 PM

Great stuff katana!

Apparently all Rhino horn post 1945 is also recognisable by the microscopic radation isotopes of plutoniam & uranium that dont show up in the true pre.1945 vases & handles.{So it must be incoprated in the horn through foodstuffs rather than just existance.]

But Aldermston charge a few pennys to run such a test I suspect!

I presume its a true age test for anything organic from post 1945?

Spiral

25th March 2008, 10:11 PM	#1
Tim Simmons Member Join Date: Dec 2004 Location: What is still UK Posts: 5,925	It should burn in the same that your fingernail cuttings burn. A sort of melting burn unlike charring of wood. I have two African staffs which I believe are Rhino horn. The ends are carved as people and holes have been made for the eyes, set with stone in one and glass beads in the other. These holes have been made by something hot poked into the material, when you look close with magnification you can see the edges are a melted burn like burning fingernails. I hope that helps, the trouble is finding a place to make a test? Just realised all? horn is keratin. If it is solid and 1m long it not so difficult. Rhinos can grow horn up to 2m. That would look huge as a stick in your hands. Stick it on the bonnet of a small range rover motor car and it will look a lot more modest. This mention stuff about length if you read carefully. http://www.honoluluzoo.org/white_rhinoceros.htm Last edited by Tim Simmons; 25th March 2008 at 10:31 PM.

25th March 2008, 10:51 PM	#2
katana Member Join Date: Jan 2006 Location: Kent Posts: 2,658	Hi Amuk, perhaps these pictures will also help.... Regards David . Attached Images

26th March 2008, 06:45 PM	#5
Tim Simmons Member Join Date: Dec 2004 Location: What is still UK Posts: 5,925	Willem, I agree wholeheartedly with you that the quality art and artistic expression does not depend on the intrinsic value put on the material it is made from. Market forces are not always influenced by subtleties. This can be to your advantage sometimes.

26th March 2008, 10:13 PM	#6
katana Member Join Date: Jan 2006 Location: Kent Posts: 2,658	A definitive test ....but unfortunately too expensive and slightly distructive. It relies on DNA analysis, if it was practical you would not only know that your hilt is definately Rhino .....but also the species, the type of food it ate and the region where your 'horn hilt' roamed http://nationalzoo.si.edu/Publicatio..._Forensics.cfm Regards David

26th March 2008, 11:27 PM	#7
spiral Member Join Date: Dec 2004 Posts: 1,712	Great stuff katana! Apparently all Rhino horn post 1945 is also recognisable by the microscopic radation isotopes of plutoniam & uranium that dont show up in the true pre.1945 vases & handles.{So it must be incoprated in the horn through foodstuffs rather than just existance.] But Aldermston charge a few pennys to run such a test I suspect! I presume its a true age test for anything organic from post 1945? Spiral