Opal
Opal is a unique gemstone known for its iridescent play of color. It is an amorphous silica mineral with high water content, possessing a beauty that shifts through various colors depending on the viewing angle.
Opal with beautiful play of color
Basic Information
| Chemical Formula | SiO2·nH2O |
|---|---|
| Classification | Amorphous silicate mineral |
| Hardness | 5.5–6.5 (Mohs scale) |
| Specific Gravity | Approx. 1.98–2.25 |
| Transparency | Opaque to translucent |
Characteristics
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Play of Color: Rainbow-like color variations caused by its internal silica structure.
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Water Content: Contains up to nearly 20% water.
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Fragility: Sensitive to dryness and physical impact, prone to cracking.
Origins and Uses
Main Origins
Australia
Ethiopia
Mexico
Brazil
Uses
- Jewelry: Rings, necklaces, earrings, etc.
- Collection: Popular as specimens with beautiful play of color
- Healing Stone: Used for emotional stability and enhancing creativity
Care Instructions: Since it is sensitive to dryness, avoid storing in locations exposed to direct sunlight or heating vents.