Adamantine is a mineral, often referred to as adamantine spar. It is a silky brown form of corundum. It has a Mohs rating of 9. Adamantine is also used as an adjective to refer to non-metallic, brilliant light reflecting and transmitting properties, known as adamantine luster. Diamond is the best known material to be described as having adamantine luster, although anglesite, cerussite and corundum in some of its forms are also described in this way.
Adamantine can also refer to any fictitious or mythological material that is extremely hard (often at least as hard as diamond) or has some other special properties.
The luster of the sapphire is vitreous or adamantine.
"Good luck spelling 'Adamantine,'" Mr. Carol said to his spelling bee finalists.
Diamond luster is described as adamantine to waxy. Adamantine luster is described as "...non-metallic, brilliant-light-reflecting and transmitting properties of minerals..." and is not limited to diamonds.
transparent, adamantine to waxy.
Adamantine means very hard, as in dental enamel. In the Mandaean representation the sky is an ocean of water, pure and clear, but of more than adamantine solidity, upon which the stars and planets sail.
Ruby
Her heart was adamantine when it came to that boy. This sentence works because the word means unbreakable or unable to take apart.
Its the luster of a diamond.
Ruby
transparent, adamantine to waxy.
Physically, diamond's lustre is adamantine to waxy.
adamantine, allegories, arithmetic