Much of the magic you see in an opal comes down to alchemy of silicone, water and light. Partially comprised of water, it is best to prevent your opal from drying out to avoid cracking. Prolonged intense sun exposure can cause micro-cracks or crazing causing changes in the opal.
Please take caution and store your opal jewelry carefully. Don't store away opals for a long period of time such as a safe. Also do not expose opals to strong sunlight for a long period of time. They are sensitive to low humidity conditions and sudden changes in temperature (hot dry heat into a cold dry air conditioned room).
Solid opal should be cleaned with a mild detergent in warm soapy water. Avoid the use of ultrasonic cleaners and harsh chemicals- opals are sensitive. Opal doublets and triplets should never be immersed in water. The surface should be cleaned with a soft brush or cloth.
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