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This is a natural untreated stone mined in India showing stunning blue and purple fire. In earlier times, this stone was also known as “water sapphire”. It was seen that if a cube is being cut out from lolite, one of its side looked exactly like a sapphire and the other is as clear as water. In this stone, some of the pictures show this effect.
Weight of stone 0.37 cts
App Size 6 x 4x 2 mm app
When Leif Eriksson and the other legendary Viking explorers ventured far out into the Atlantic Ocean, away from any coastline that could help them determine their position, they had a secret gem weapon: iolite. The Viking mariners used thin pieces of it as the world's first polarising filter. Looking through an iolite lens, they were able to determine the exact position of the sun, and navigate their way safely to the New World and back.
The property that made iolite so valuable to the Vikings is its extreme pleochroism. Iolite has different colours in different directions in the crystal. A cube cut from iolite will look a more or less violet blue, almost like sapphire, from one side, clear as water from the other, and a honey yellow from on top. In the past, this property led some people to call iolite 'water sapphire', though the name is now obsolete.