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Ivory is a hard, white material from the tusks (traditionally from elephants) and teeth of animals, that consists mainly of dentine, one of the physical structures of teeth and tusks. The chemical structure of the teeth and tusks of mammals is the same, regardless of the species of origin, but ivory contains structures of mineralised collagen. [1]
Ivory, variety of dentin of which the tusk of the elephant is composed and which is prized for its beauty, durability, and suitability for carving. The tusk is the upper incisor and continues to grow throughout the lifetime of male and female African elephants and of the male Indian elephant; the.
the hard yellowish-white substance that forms the tusks of some animals such as elephants, used especially in the past to make decorative objects: Ivory is a softer material than you might imagine. a ban on ivory trading. [ C usually plural ] an object made from ivory: a collection of Japanese ivories. SMART Vocabulary: related words and phrases.
This ivory is both beautiful on the animals and essential to the species’ survival. But what exactly is it? We’ve all seen photographs of majestic elephants sporting long, off-white tusks on either side of their trunks.
The Venus of Brassempouy, about 25,000 BP 11th-century Anglo-Saxon ivory cross reliquary of walrus ivory. Ivory carving is the carving of ivory, that is to say animal tooth or tusk, generally by using sharp cutting tools, either mechanically or manually. Objects carved in ivory are often called "ivories".
Ivory carving, the carving or shaping of ivory into sculptures, ornaments, and decorative or utilitarian articles. Elephant tusks have been the main source of ivory used for such carvings, although the tusks of walrus and other ivory-bearing mammals have also been worked.
Ivory is the hard, white material from the tusks and teeth of elephants, hippopotami, walruses, warthogs, sperm whales and narwhals, as well as now extinct mammoths and mastodons. This resource focuses specifically on elephant ivory, which is the most popular and highly valued of all ivories.
Oct 19, 2023 · Throughout history, the human desire for ivory—used in products from jewelry to piano keys to priceless religious art objects—has far outmatched efforts to stop the killing of African elephants for their tusks.
Jun 4, 2024 · Ivory is made of dense bone tissue that surrounds enamel. More specifically, it is a form of dentin, which is the hard material that makes up the bulk of teeth. Unlike antlers that are shed annually, tusks evolved from upper incisor teeth and continually grow over the course of the animal’s lifetime.
Ivory is the hard, smooth, substance, composed primarily of dentin, that constitutes the tusks, or upper incisors, of elephants (family Elephantidae), including the extinct mammoths (genus Mammuthus ), as well as the elephant-like mastodons (family Mammutidae, order Proboscidea).
