Jewelry New Arrivals Pairs Lots Contact
 
: Cordierite Gemstone
Frequently Asked Questions (FAQ) / Cordierite and Iolite

Do you sell a gem named cordierite?

Violet Blue Cordierite Iolite

Cordierite is one of the names used for the gemstone that we sell under the name of iolite. It is composed of magnesium aluminum silicate and has a hardness of 7 to 7.5 on the Mohs scale. Cordierite is the name most commonly used in mineralogy, while iolite is used in gemology. The name cordierite comes from the French geologist P. Cordier (1777-1861); the name iolite comes from the Greek root for "violet". For more information see our iolite information page.

Return to FAQ HOME

  • First Published: February-20-2006
  • Last Updated: August-07-2017
  • © 2005-2017 GemSelect.com all rights reserved.
    Reproduction (text or graphics) without the express written consent of GemSelect.com (SETT Company Ltd.) is strictly prohibited.
English speaking customer support only

Toll Free - USA & Canada only:
1-800-464-1640

International:
+66-39303404

Reorder Items

Save Money
No shipping Fees for Additional Items!
$6.99 Worldwide Shipping

Update Translation
 
Current Value
New Value
GemSelect Gemstones
X Close Window
Colored Gemstones
X Close Window
Colored Gemstones
X Close Window
Colored Gemstones
Size and Weight

Gems are always measured in Millimeter (mm)

Dimensions are given as;
length x width x depth,
except for round stones which are;
diameter x depth

Select gems by size, not by weight!
Gem varieties vary in density, so carat weight is not a good indication of size

Note: 1ct = 0.2g

Size Comparison Chart