Directory of Gems - Gem Dictionary - reference guide to Iolite Directory of Gems - Gem Dictionary - reference guide to Iolite
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As the transparent variety iolite, it is often used as a gemstone. The name "iolite" comes from the Greek word for violet. Gem quality iolite varies in color from sapphire blue to blue violet to yellowish gray to light blue as the light angle changes. ...read more
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