Definition of iolite

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Iolite (n.) A silicate of alumina, iron, and magnesia, having a bright blue color and vitreous luster; cordierite. It is remarkable for its dichroism, and is also called dichroite..

Lern More About Iolite

Pinite :: Pinite (n.) A compact granular cryptocrystalline mineral of a dull grayish or greenish white color. It is a hydrous alkaline silicate, and is derived from the alteration of other minerals, as iolite..
Miliolite :: Miliolite (n.) A fossil shell of, or similar to, the genus Miliola..
Peliom :: Peliom (n.) A variety of iolite, of a smoky blue color; pelioma..
Meerschaum :: Meerschaum (n.) A fine white claylike mineral, soft, and light enough when in dry masses to float in water. It is a hydrous silicate of magnesia, and is obtained chiefly in Asia Minor. It is manufacturd into tobacco pipes, cigar holders, etc. Also called sepiolite..
Variolite :: Variolite (n.) A kind of diorite or diabase containing imbedded whitish spherules, which give the rock a spotted appearance..
Sepiolite :: Sepiolite (n.) Meerschaum. See Meerschaum.
Water Sapphire :: Water sapphire () A deep blue variety of iolite, sometimes used as a gem; -- called also saphir d'eau..
Miliolite :: Miliolite (a.) The same Milliolitic.
Heliolite :: Heliolite (n.) A fossil coral of the genus Heliolites, having twelve-rayed cells. It is found in the Silurian rocks..
Radiolite :: Radiolite (n.) A hippurite.
Dichroite :: Dichroite (n.) Iolite; -- so called from its presenting two different colors when viewed in two different directions. See Iolite.
Miliolitic :: Miliolitic (a.) Of or pertaining to the genus Miliola; containing miliolites.
Spongiopilin :: Spongiolite (n.) One of the microsporic siliceous spicules which occur abundantly in the texture of sponges, and are sometimes found fossil, as in flints..
Variolitic :: Variolitic (a.) Of, pertaining to, or resembling, variolite..
Cordierite :: Cordierite (n.) See Iolite.
Praseolite :: Praseolite (n.) A variety of altered iolite of a green color and greasy luster.
Fahlunite :: Fahlunite (n.) A hydration of iolite.
Iolite :: Iolite (n.) A silicate of alumina, iron, and magnesia, having a bright blue color and vitreous luster; cordierite. It is remarkable for its dichroism, and is also called dichroite..
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