Cordierite (iolite) properties

Cordierite, a prominent member of silicates, blends magnesium and aluminum to form a gem with vitreous luster, showcasing shades of blue with a unique play of colors. Its pleochroism reveals changing hues, from blue to yellow and violet depending on the angle of observation.

With crystals reaching 18 cm, it dazzles, notably in the largest cut specimen displayed at the British Museum, weighing 855 carats.

First described by mineralogist Lucas in 1813, it owes its name to French mineralogist Louis Corbier, who initially called it dichroite in 1809.

Cordierite, known as dichroite for its pleochroism from "Duo" or "two" and "Kroma" or "color". It also reveals itself as Iolite or Volithe, deriving its name from the Greek "Iol", meaning "violet".
Other names, like New Zealand Blue Quartz, Water Sapphire (Buffon) (now a banned term), or Steinheilite (Pansner), contribute to the richness of its mineral history.

However, its delicate identification makes it susceptible to confusion with gems like amethyst, quartz, tanzanite, or serpentine.

Cordierite, resistant to acid and fire, thus maintains its mystery and charm in the world of gemstones.

Stories, beliefs and legends about the cordierite (iolite)

There is sometimes mention of cordierite being associated with Athena, the Greek goddess of war and wisdom. However, we haven’t found any supporting texts for these claims.

Some scientists suggest that it could be the legendary sunstone of the Vikings. Recognized as the "compass stone" or "Viking stone," it might have guided these navigators by maintaining its clearest face under cloudy skies, indicating the direction of the sun.

Adding to its mystique, cordierite is occasionally celebrated as the anniversary stone for the 21st year of marriage, infusing a romantic and symbolic dimension into its mineral history.

Mines: Germany, Algeria, Canada, France, Italy, Burma, Sri Lanka, India, Madagascar, USA, Norway, Brazil.

Healing properties and benefits of the cordierite (iolite)

• Cordierite proves beneficial for liver issues, providing natural support for liver health.
• Iolite, with its vibrant blue-violet hue, offers a haven for peaceful nights by promoting restful sleep.
• It is praised for its positive impact on the optimal functioning of the liver and gallbladder, contributing to digestive balance.
• Cordierite, renowned for strengthening nerves, could provide valuable assistance in cases of paralysis.
• Iolite, by regulating body acidity, proves useful against rheumatism, gout, and gastrointestinal issues.
• It also enhances iron absorption, contributing to overall better health.
• Cordierite shows effectiveness in relieving sore throats and chronic sinus problems.
• As a natural analgesic, Iolite provides comfort for persistent headaches.
• It helps reduce fat deposits in the body, supporting balanced weight management.
• Cordierite, celebrated for stimulating hair and nail growth, becomes a ally for natural beauty.
• Iolite demonstrates its effectiveness in the treatment of malaria and fevers, reinforcing its therapeutic properties.

Cordierite jewelry samples