About Iolite
History and Folklore
The old Greek word diochrite has also been used for lolite, meaning "two-colored rock". Its ability to determine the direction of the sun (even on overcast days) gave the name "Vikings Compass," as they would use this stone for navigation on the seas and oceans of the Earth.
Facts and Information
It is mainly found in gravel beds in Sri Lanka. lolite has strong pleochroism, meaning when it is viewed from different directions. it displays different colors.
Major Sources
Brazil
India
Sri Lanka
Identification and Characteristics
- R.I.: 1.542 - 1.551 (+.045, -.011)
- Hardness: 7 - 7.5
- S.G.: 2.61 (+.05, -.05)
Cleaning Methods
- Safe in warm, soapy water
- Risky In ultrasonic
- Risky In steamer
