Definition of spinel

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Spinelle (n.) A mineral occuring in octahedrons of great hardness and various colors, as red, green, blue, brown, and black, the red variety being the gem spinel ruby. It consist essentially of alumina and magnesia, but commonly contains iron and sometimes also chromium..

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Carbuncle :: Carbuncle (n.) A beautiful gem of a deep red color (with a mixture of scarlet) called by the Greeks anthrax; found in the East Indies. When held up to the sun, it loses its deep tinge, and becomes of the color of burning coal. The name belongs for the most part to ruby sapphire, though it has been also given to red spinel and garnet..
Anacanthous :: Anacanthous (a.) Spineless, as certain fishes..
Aristate :: Aristate (a.) Having a slender, sharp, or spinelike tip..
Lherzolite :: Lherzolite (n.) An igneous rock consisting largely of chrysolite, with pyroxene and picotite (a variety of spinel containing chromium)..
Franklinite :: Franklinite (n.) A kind of mineral of the spinel group.
Pleonaste :: Pleonaste (n.) A black variety of spinel.
Balas Ruby :: Balas ruby () A variety of spinel ruby, of a pale rose red, or inclining to orange. See Spinel..
Spinelle :: Spinel (n.) Alt. of Spinell.
Gahnite :: Gahnite (n.) Zinc spinel; automolite.
Acanthopterygii :: Acanthopterygii (n. pl.) An order of fishes having some of the rays of the dorsal, ventral, and anal fins unarticulated and spinelike, as the perch..
Ceylanite :: Ceylanite (n.) A dingy blue, or grayish black, variety of spinel. It is also called pleonaste..
Acanthopterygious :: Acanthopterygious (a.) Having fins in which the rays are hard and spinelike; spiny-finned.
Spinescent :: Spineless (a.) Having no spine.
Spinozism :: Spinous (a.) Having the form of a spine or thorn; spinelike.
Seta :: Seta (n.) One of the spinelike feathers at the base of the bill of certain birds.
Espinel :: Espinel (n.) A kind of ruby. See Spinel.
Spinel :: Spinelle (n.) A mineral occuring in octahedrons of great hardness and various colors, as red, green, blue, brown, and black, the red variety being the gem spinel ruby. It consist essentially of alumina and magnesia, but commonly contains iron and sometimes also chromium..
Gem :: Gem (n.) A precious stone of any kind, as the ruby, emerald, topaz, sapphire, beryl, spinel, etc., especially when cut and polished for ornament; a jewel..
Rostrum :: Rostrum (n.) The anterior, often spinelike, prolongation of the carapace of a crustacean, as in the lobster and the prawn..
Vibraculum :: Vibraculum (n.) One of the movable, slender, spinelike organs or parts with which certain bryozoans are furnished. They are regarded as specially modified zooids, of nearly the same nature as Avicularia..
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