Core tip: the river separates competion experts bao-long zhang from the viewpoint of ivory material quality, African ivory is better than the Asian elephant ivory, because African dentin to close, much like white or yellow, good gloss, high hardness.
And the river separates competion experts bao-long zhang from the viewpoint of ivory material quality, African ivory is better than the Asian elephant ivory, because African dentin to close, much like white or yellow, good gloss, high hardness.
And Asian dentin of density and hardness than African ivory, and easy to aging, the color yellow, luster is also poor.
Pure milk white as the best in so far as color is concerned, ivory and ivory of very long time, due to the length of time and the different environmental gradients to pale yellow, medium yellow, deep yellow color, the color of light, the better.
Ivory and tooth tip for each part is best, the tooth tube, root is the worst.
As teeth heart condition, in the 'heart of the sun' best, 'sesame' second, 'vexed' is the worst.
To words, the material of large, fine texture tenacity, colour and lustre is milky white, light yellow. chinese is the best, s more long, the craft is more exquisite, more good. chinese more valuable.
In ancient China does not produce ivory, ivory carving materials are from Africa and Asia countries such as India, Thailand and Burma, and came to China after the price has expanded several times.
Small number, together with ivory carved works of art, is even more expensive.
The ivory is banned on international trade of goods, can see ivory products on the market, only the ancient legacy and the trade before the legacy of two kinds of sources, supply scarce, but also in short supply.
Therefore, profit counterfeiters with some similar material with ivory carvings, the sham as the genuine, causing many collect lover to be fool, therefore, must contend.
To hide here at six friends to introduce an effective correlation method.
Delicate jade texture contrast: true dentin, without 'bone eye';
Its texture is coarser, bone products are 'bone eye'.
Natural tooth color contrast: true ivory white, moist surface.
Years of ivory color can change, in general, the color yellow, late qing dynasty and early period of the qing dynasty middle-late slightly yellow color, the color of the early qing dark yellow or light brown, dark brown belt of Ming dynasty or earlier micro black, and a shallow crack (
Some people call it 'sparrow')
, but no matter how to change, the color all calm nature, and wrapped slurry.
Bone and plastic (
Dry the color of the products and not natural, color without burnish.
No smell smell contrast: real ivory products, zylonite products tend to have a smoke choking smell smell.
Grain contrast: true ivory fine grain, cross-section grid lines, wavy lines and herringbone profile present peak;
Cross section of bone products characterized by intermittent rings lines;
Artificial ivory products,
The chemical process synthesis)
Deliberately make tooth lines are rigid dull, the rules of parallel lines, natural herringbone with ivory, mesh a significant difference between the two.
Weight contrast: true ivory handle heavy, touch down, zylonite products weight is lighter, touch hair.
Work contrast: real ivory products shape is round, more nine times out of ten for carving masters and skillful craftsman carved, seiko spy, buddhas ladies xingshenjianbei, landscape wood and distinct, flower-and-bird insect fish, lifelike, artistic style, pretty is a work of art, is never tireless, fondle admiringly.
Zylonite products, more show elliptic or circular shape, are counterfeiters and craftsman parody or something, do manual work is a rough, art of using saber is weak, the visible without god, full of customers-want, there is no art appreciation.
Grasp the main point above, and more observation, more use in the collection practice, false. chinese nature will leave you.