We often get asked how to properly care for your opal to ensure longevity and minimise the chance of damage. There is a common perception about Australian Opals that they should not be exposed to water as they can change in colour or lose their patterns / brightness.
Opal is formed from a solution of silicon dioxide and water. As water runs down through the earth, it picks up silica from sandstone, and carries this silica-rich solution into cracks and voids , caused by natural faults or decomposing fossils. As the water evaporates, it leaves behind a silica deposit. This cycle repeats over very long periods of time, and eventually opal is formed.