Kyanite Bracelet VII (9mm)The Greeks named it after the deep blue of the ocean. Kyanos means dark blue. Product Highlights: The Stone: Millions of years of history. Kyanite forms under extreme pressure deep in the earth's crust. This happens during the same tectonic collisions that build mountain ranges. Its blue color comes from trace iron and titanium. It has a special property found in almost no other mineral: it has two different hardness levels in the same stone,