Caribbean iolite

Caribbean iolite: Iolite I"o*lite ([imac]"[-o]*l[imac]t), n. [Gr. 'i`on a violet + -lite.] (Min.) 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}. A variety called {Caribbean iolite} has a lighter blue color. [1913 Webster +PJC]

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Iolite — I o*lite ([imac] [ o]*l[imac]t), n. [Gr. i on a violet + lite.] (Min.) 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}. A… … The Collaborative International Dictionary of English
dichroite — Iolite I o*lite ([imac] [ o]*l[imac]t), n. [Gr. i on a violet + lite.] (Min.) 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… … The Collaborative International Dictionary of English

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