Asia Products LLC sells high quality opals

Opal is October's birthstone and is an elegant sparkling gemstone. Opal is made up of close packed aggregates of silica spheres, and with a water content of between 3-10%. In precious opal the arrangement of spheres is in orderly layers, and light passing through the spheres is diffracted at the void and layer interface to produce the vivid play of color associated with opal. Larger silica spheres are associated with more sought after colors, such as red. Opal has hardness ranging from 5 to 6.5, and is brittle with a conchoidal fracture. Opal is found in Australia, Brazil, United States, Czech Republic, Slovakia, Hungary, Turkey, Indonesia, Brazil, Honduras, Guatemala, Nicaragua and Ethiopia.