IOLITE

 

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Named after P. Cordier, a French geologist. Cordierite is also known as iolite and dichroite. Iolite displays colors ranging from deep blue, to violet and light blue and grayish blue. It can be confused with tanzanite.Iolite, also called Cordierite, Dichroite, or Water Sapphire when the color is not very intense.  Iolite varies from quite Deep Blue to violet Blue to light grayish-Blue, but it always has a strong pleochroism

 

TECHNICAL DETAILS

Chemical Composition and Name Silicate
Hardness  7.0
Specific Gravity 1.53 - 1.55
Birefringence 0.005 to 0.009
Crystalline System

 

 Orthorhombic

 


 

 

 

( View

 Iolite

 Stocks  )

 

SOURCES FOR THIS

GEMSTONE

Brazil, Zambia,Tanzania, U.S., Canada, India, Sri Lanka and Madagascar

TREATMENTS

Typically Ioilitet is not HEAT treated.

CARE

It is usually safe to clean Iolite  jewelry in an Ultrasonic cleaner, but risky to use a steamer.  We recommend ionic cleaners and/or warm, soapy water and a soft brush as the best way to clean your gemstone jewelry.

 

 

 

 

 

 

 
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