Iolite – Water Sapphire, Viking’s Compass

Iolite Beads
Out of all the beautiful stones that I brought to sell on The Big Island of Hawai’i it was the strand of rectangular Iolite beads that piqued my interest the most – I ended up keeping it to make a bracelet for myself. There is something about its blue-gray-purple color with hints of silver and gold that reminded me of a clouded sky reflecting off the turbulent ocean surrounding the islands.
The name Iolite comes from the Greek word for violet. Even though the stone beads I have are almost violet, it still brought to my mind a stormy sea at dusk.
After researching about Iolite, I found out that it is also called ‘water sapphire’ or ‘Viking’s Compass’ because of its ability to tell the direction of the sun on cloudy days. There is some correlation with the polarization of light scattered by air molecules. I am not entirely sure how this works and will research it more. Is there anyone who can help explain it? I would love to hear from you. Contact me.
Iolite is not that well known. In mineralogy they call it Cordierite and it is a magnesium iron aluminum cyclosilicate. Iron is almost always present. It is sometimes used as a less expensive alternative to sapphire and is found in many countries including Sri Lanka, India, Burma, Brazil, Tanzania. Read more about Iolite on wikipedia. Or see more gemstone quality Iolite at Google images.



















