Cantera opal
Mexican cantera fire opal meaning for sale. Gem cutters simply cut a cabochon of rhyolite with a fire opal window in the... Read More
Boulder opal
The Koroit boulder opal rough is a famous stone to wear as jewelry rings, pendant, necklace, earrings or bracelet. Boulder opal is... Read More
Doublet opal
For gemstone use, most opal is cut and polished to form a cabochon. Solid opal refers to polished stones consisting wholly of... Read More
Synthetic Aurora opal
Fine Crystalline Opals with a Non-Directional Pattern of Play-of-Color. Synthetic aurora opals are available in different colors as black opals with orange,... Read More
Synthetic opal
Opals of all varieties have been synthesized experimentally and commercially. The discovery of the ordered sphere structure of precious opal led to... Read More
Cat’s eye opal
A cat’s eye opal is an opal with a cat’s eye effect visible on the top of the stone when it is cut... Read More
Opal, from Mondulkiri, Cambodia
Tags Opal
Opal, from Mondulkiri, Cambodia Opal is a hydrated amorphous form of silica (SiO2·nH2O); its water content may range from 3 to 21%... Read More