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Century Dictionary
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Elsewhere on the web
There are some regularly used gemstones found in Navajo and other Southwest Indian jewelry including turquoise, hematite, jasper, malachite, aventurine, amethyst and rhodonite.— RO.RSS
The Kumawat craftsmen specialise in rose quartz, emerald, light and dark green aventurine, ruby, aquamarine, jasper and rock crystal sculptures.— India eNews
The only exception I can think of to this rule is aventurine,[1] a substance known to mineralogists, which in its natural state cannot compare with the artificial preparation of it Footnote 1: Translator's Note_.— The Essays of Arthur Schopenhauer; Counsels and Maxims
By far the greater number of these colors are discoveries or improvements of the venerable mosaicist Lorenzo Radi, who has found again the Byzantine secrets of counterfeiting, in vitreous paste, aventurine (gold stone), onyx, chalcedony, malachite, and other natural stones, and who has been praised by the Academy of Fine Arts in Venice for producing mosaics even more durable in tint and workmanship than those of the Byzantine artists In an upper story of the palace a room is set apart for the exhibition of the many beautiful and costly things which the art of the establishment produces.— Venetian Life
Each of these rain-makers has a number of rain-stones, such as rock-crystal, aventurine, and amethyst, which he keeps in a pot.— The Golden Bough

American Heritage Dictionary (1)
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