Description
What looks like stone is, on closer inspection, frozen time. Kyanite’s defining property is its anisotropic hardness: 4.5 across the bladed crystal, 6.5–7 along it. A single crystal can scratch one way and be scratched from the other. The blue color comes from iron and titanium. Brazilian material — often sapphire-blue, sometimes teal — is among the most gem-like.
This specimen originates from Barra do Salinas, Minas Gerais, Brazil, one of the world’s most significant localities for this type of material. Collectors and scientists have drawn from this region for generations, and for good reason: the combination of geological conditions here produces specimens of exceptional quality and clarity.
Every specimen is unique. Photographs approximate the visual experience, but the real thing — its weight, its luster under a raking light, the way it catches the corner of your eye — can only be experienced directly.
