Understanding the Magic of Opal
Opals are non-crystalline silica structures. Their color comes from millions of tiny silica spheres; when light passes through these spheres, it diffracts and creates the spectral colors we see. Because Opals contain between 3% and 21% water, they require specific care to maintain their brilliance and structural integrity over time.
Expert Guides & Resources:
Black Opal vs. Boulder Opal: What's the difference?
Read ComparisonInvestment Guide: How to Value Opal
Learn ValueOpal Quick Facts:
- Hardness: 5.5 – 6.5 on the Mohs scale.
- Composition: Hydrated Amorphous Silica.
- Origins: Australia (95%), Ethiopia, and Mexico.
Frequently Asked Questions
How do I care for my Opal jewelry?
Avoid extreme heat and sudden temperature changes. Solid opals should be cleaned with mild detergent in warm water and a soft cloth.
What is "Play-of-Color"?
This is the optical phenomenon where flashes of color change as the stone is tilted. It is distinct from the body color of the opal.
