Bello Opal - a polymer impregnated synthetic opal. Bello Opal is a synthetic, created opal that is 80% silica (like a natural opal) and 20% resin (unlike a natural opal). It is more resistant to heat, chemicals, and damage than natural opal, and is as light as a feather - making it very nice for earrings. These are truly superior synthetic opals.

8mm Hole size is approx. .8mm. By the pack of 2.