Hornbill ivory Totally Explained

Everything about Hornbill Ivory totally explained

Hornbill ivory (also called "golden jade") is a precious ornamental material derived from the Helmeted Hornbill (Buceros vigil), a large bird of the Malay Peninsula, Sumatra, and Borneo. Many hornbill species have "casques", decorative growths on the upper mandible of the bill. In most, the casque has a spongy structure, but in the Helmeted Hornbill it's solid keratin. This material, hornbill ivory, has a texture suggesting ivory but is softer. As it grows it's golden yellow, but the bird rubs its casque on its preen gland, whose oily secretion tints the surface of the casque bright red.
Native peoples in the Helmeted Hornbill's range, such as the Kenyah and Kelabit, have long carved the casques. In Malaysia, hornbill-ivory rings were said to change color when near poisonous food.^{(External Link)} The Chinese encountered the material in the 14th Century and it soon became an important trade item at Brunei. During the Ming dynasty, the Chinese valued hornbill ivory above true ivory or jade. They carved the casques, or they made them into sheets, colored them with the secretion of the preen gland, and made them into belt buckles for high officials. They called hornbill ivory hèdǐng (Wade-Giles ho-ting), which is said to be their approximation of an indigenous name^{(External Link)} (but means "crane head", and thus many Chinese thought the substance came from a crane rather than a hornbill). The Japanese also carved imported hornbill ivory into such objects as netsuke.
By the early 20th Century, the Helmeted Hornbill became rare because it was slaughtered for its casque. Now legal trade in hornbill ivory is limited to certified antiques, and hornbill-ivory carvings are more valuable than those of any true ivory.^{(External Link)}Further Information

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