Iolite 4mm Round Cabochon Item | 65512

Stone size: 4.0mm 
Stone shape: Round 
Material: Iolite 
Stone type: Natural 
Color: Violet-blue 
Mohs hardness: 7–7.5 
Refractive index: 1.53–1.55 
Specific gravity: 2.58–2.74 
Treatment: None (N) 
Cutting center: India 

Iolite is the gem name for cordierite, a silicate of aluminum and magnesium. Sometimes called dichroite, alluding to its dichroic properties, it shows two or more colors according to the direction in which it is viewed through transmitted light. Most iolite is found in gravel beds in the form of water-worn pebbles.

please note:
• Care: Clean with warm, soapy water; never clean using steam or ultrasonics.

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