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Bluish crystalline mineral
Answer for the clue "Bluish crystalline mineral ", 6 letters:
iolite
Alternative clues for the word iolite
Word definitions for iolite in dictionaries
The Collaborative International Dictionary
Word definitions in The Collaborative International Dictionary
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 ...
Wiktionary
Word definitions in Wiktionary
n. (context gemology English) The clear variety of cordierite.
Usage examples of iolite.
Thariinye adjusted the assembler to produce other silicates such as tourmaline and iolite, orthoclase and microcline.
Iol: Also known as iolite, cordierite, or violet stone (despite its usual overall hue of blue), this semiprecious stone is usually cut into faceted gemstones to best display its color change when viewed from different directions.