1.61 Ct GORGEOUS TOP FIRE RAINBOW MULTI FLASHY 3D HONEY COMB WELO BLACK OPAL ERV R18790

1.61 Ct GORGEOUS TOP FIRE RAINBOW MULTI

FLASHY 3D HONEY COMB WELO BLACK OPAL

Where do these best opals come from?

Common Opal is found in a limited number of countries. A small amount of precious Opal is found in Brazil and Mexico. However, 96% of the worlds precious opal comes from three isolated areas in the outback of Australia.

Is opal a mineral or rock?

Opal is a hydrated amorphous form of silica (SiO. nH₂O); its water content may range from 3 to 21% by weight, but is usually between 6 and 10%. Because of its amorphous character, it is classed as a mineraloid, unlike crystalline forms of silica, which are classed as minerals.