These elegant earrings are set with blue green Opals , with a small Cubic Zircona. 

Opals are created from silion dioxide solutions, which entered cracks in ancient rocks during the Cretaceous geological period.  Once the water evaporated , the tiny spherical silica particles eventually created Opals. White light is refracted by these spheres and is broken up to form the colours of the spectrum .

Opal is a birthstone for Libra , Taurus  and the months of October, September and November...

Opals are said to encourage stable relationships and companionship.

The Pair of earrings weigh 5.5 grams 

Stone size 8mm x 6mm 

Length , excluding hook 3.3cm