Finest quality opals are from Australia.

Opal is the birth stone for October born people.

When opal formed, silica gel filled crevices in rock. As water evaporates, the silica is deposited in the form of tiny spheres.

Opal’s flashing play-of-color is caused by diffraction of light by silica spheres stacked like tiny Ping-Pong balls in a box.

Color differs from different angles due to the 20% water trapped in its silica structure.

A glare of red is considered the best prominent color, orange the next and then green.

Opal has relatively low density compared to other gemstones, so large size opals can be worn comfortably.

Writers have compared opals to volcanoes, galaxies, and fireworks. Admirers gave extraordinary opals poetic names like Pandora, Light of the World, and Empress. In ancient Rome, this gem symbolized love and hope. The Romans gave it a name—opalus—that was synonymous with “precious stone.”

Europeans have long considered the gem a symbol of hope, purity, and truth.

Opal is the product of seasonal rains that drenched dry ground in regions such as Australia’s semi-desert “outback.”