Caring for Opals
Why Opals Are Delicate
Caring for opals requires gentle handling and specific precautions to keep their natural beauty and strength intact. These gemstones are made of hydrated silica spheres, which makes them sensitive to quick temperature shifts and bumps. To hold onto their colorful display, store opals away from direct sun and heat to avoid drying out and cracking.
There are two key reasons opals get a reputation for being fragile. First off, they're on the softer side - scoring between 5.5 and 6.5 on the Mohs hardness scale - so everyday dust, which might include quartz particles, can scratch them easily. Second, they contain a good amount of water, anywhere from 3 to 30 percent. In super dry spots, they might lose moisture and crack. And hey, that water also means they're not fans of sudden hot or cold changes.
Some opals have extra risks. Take opal doublets and triplets - they're a slice of precious opal stuck to a dark base. Water for too long can loosen the glue and sneak in between layers, turning the stone gray or cloudy. Solid opals? They're tougher in this regard and skip that issue.
Cleaning Opals
So, how do you clean opals without causing trouble? For solid ones, go easy with mild soap in warm water and a soft brush or cloth. Skip the bleach, harsh chemicals, or cleaners - they're no good here. Doublets and triplets? Just wipe them with a damp cloth and gentle soap; don't dunk them in water.
Never pop opals into an ultrasonic cleaner. Those strong vibes could crack a solid opal or let water invade a layered one.
Storing Opals
If you're stashing your opal away for a while, seal it in a plastic bag with a moist cotton ball to keep it hydrated and crack-free.
Wearing Opals
Good opal care helps avoid damage and keeps them around longer. They're great for earrings, brooches, or pendants since those spots see less action. Craving an opal ring? Pick a bezel setting for protection. If it's your everyday ring, plan on repolishing it now and then to keep that shine going strong.
Frequently Asked Questions
Why are opals considered delicate?
Opals are soft (5.5-6.5 on Mohs scale) and contain water (3-30%), making them prone to scratches, drying out, and cracking from temperature changes.
How should I clean a solid opal?
Use mild detergent in warm water with a soft brush or cloth; avoid chemicals and soaking for doublets or triplets.
Can I use an ultrasonic cleaner for opals?
No, the vibrations can cause cracking or water penetration in layered opals.
What's the best way to store opals long-term?
Keep them in a sealed plastic bag with a damp piece of cotton to prevent dehydration.
Which jewelry types are best for opals?
Earrings, brooches, and pendants are ideal; for rings, choose protective settings like bezels.
