The Hungarian, occidental, or quartz cat’s-eye is found on the coast of
Malabar, Ceylon, Hartz Mountains, and Bavaria.
This stone is translucent to opaque, gray, green, brown, red, and the
shadings of these colors, but usually a greenish-gray, with a mass of
fine white lines in the centre, which give to the stone a chatoyant
appearance.
The cat’s-eye is usually cut cabochon or carbuncle-shaped, and the
lines (which are due to the fibres of asbestos) are kept in the centre
of the stone, and play like the eye of a cat when the stone is moved.
The quartz cat’s-eye is easily distinguished from the oriental of
chrysoberyl cat’s-eye, as it is softer and much lighter.