When some gemstones are ground into a hemispherical or oval-hemispherical shape, under direct sunlight or strong light, a shiny band appears on the surface of the gemstone. It is narrow and flexible, and looks like a cat's eyes at noon, with cats and flashes. Ежелгі дәуірдегі асыл тастар деп аталады "мысық көзі" айырмашылықсыз, [...]
