Ivory Stone

Ivory

Ivory is a hard, white material from the tusks and teeth of animals, that consists mainly of dentin, 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 mineralized collagen. The trade in certain tusks and teeth other than elephant is well established and widespread; therefore, "ivory" can correctly be used to describe any mammalian teeth or tusks of commercial interest which are large enough to be carved or scrimshawed.

Rock (geology)

In geology, a rock is any naturally occurring solid mass or aggregate of minerals or mineraloid matter. It is categorized by the minerals included, its chemical composition, and the way in which it is formed. Rocks form the Earth's outer solid layer, the crust, and most of its interior, except for the liquid outer core and pockets of magma in the asthenosphere. The study of rocks involves multiple subdisciplines of geology, including petrology and mineralogy. It may be limited to rocks found on Earth, or it may include planetary geology that studies the rocks of other celestial objects.

Ivory (color)

Ivory is an off-white color named after, and derived from, the material made from the tusks and teeth of certain animals, such as the elephant and the walrus. It has a very slight tint of yellow.

ivory

Noun

1. The hard white form of dentin which forms the tusks of elephants, walruses and other animals.
2. A creamy white color, the color of ivory.

Adjective

1. Made of ivory.
2. Resembling or having the colour of ivory.

stone

Noun

1. A hard earthen substance that can form rocks; especially, such substance when regarded as a building material.
2. A piece of such material: a block of stone, rock or a pebble.

Adjective

1. Constructed of stone.
2. Having the appearance of stone.