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Iolite - EmeraldIolite comes from the Greek words Ion and lithos that mean violet stone.
Iolite is known as the gem of the Vikings. According to Viking legend, mariners used a thin slice of iolite to help in navigation
Colors: deep blue to light grey to yellowish gray, water sapphire, bloodshot iolite.
Enhancement code: N
Properties:
RI = 1.542-1.551
Hardness = 7-7.5
Specific gravity = 2.61
Species: iolite
Optic character – DR
Phenomena – rare
Care:
Clean with warm, soapy water and a soft brush. Avoid acids, sudden temperature changes, ultrasonic cleaners and steamer.
Major sources:
Brazil, India, Madagascar, Myanmar, Namibia, Sri Lanka, Tanzania
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