Opal is the traditional birthstone for October.
If a rainbow could be captured and set into a ring then it would be definitely be called Opal. Opal is mined primarily in Australia, Ethiopia, Brazil, USA, Sri Lanka and Mexico.
Opal is comprised of tiny spheres of silica. When these spheres are of uniform size and arranged in a three
dimensional layer, light is diffracted into the colours of the spectrum and conveyed as a flash of coloured light.
The stone is fairly soft with some water content, and as such these can dry out and ‘craze’ or crack – a beautiful but fragile stone.
Opals should be worn with care and treated with respect.