Opal Facts & Myths — What Every Collector Should Know
Opal captivates collectors worldwide with its mesmerizing play-of-color, but misconceptions about this unique gemstone persist. Understanding the facts behind the myths is essential for anyone considering adding opals to their collection or purchasing opal jewellery.
The Bad Luck Myth: Fiction, Not Fact
Perhaps the most damaging myth surrounding opal is that it brings bad luck to anyone who wasn't born in October. This superstition has no historical or cultural basis in the gemstone's Australian origins. Instead, it traces back to Sir Walter Scott's 1829 novel "Anne of Geierstein," in which an opal plays a role in a character's demise.
The reality? Opal was considered a lucky stone for centuries before Scott's fictional tale. Ancient Romans called it "opalus," meaning precious stone, and believed it brought good fortune. Australian miners certainly don't consider it unlucky—many wear opal jewellery daily. If you love opal, wear it with confidence regardless of your birth month.
Durability: Understanding Opal's Nature
Myth: Opals are too fragile to wear regularly.
Fact: While opal is softer than diamonds or sapphires (rating 5.5-6.5 on the Mohs scale), it's perfectly suitable for jewellery with proper care and setting. Black opal and boulder opal, with their natural backing, are particularly durable. Millions of people worldwide wear opal rings, pendants, and earrings daily without issues.
The key is understanding opal's properties. Solid opals are more durable than doublets or triplets (assembled stones). Protective settings for rings—such as bezel settings—provide additional security. With reasonable care, opal jewellery can last generations and become treasured heirlooms.
Water and Opal: Separating Truth from Fiction
Myth: Never get opals wet; they'll crack or lose their color.
Fact: Solid Australian opals contain approximately 5-10% water content naturally and won't be damaged by normal water exposure. You can wash your hands, shower, or get caught in the rain without harming your opal. However, prolonged soaking or extreme temperature changes should be avoided, and opals shouldn't be left in direct sunlight for extended periods, as this can cause dehydration over time.
Ethiopian opals, a different variety, are more porous and can temporarily change appearance when wet, but Australian opals are stable and reliable.
Value and Rarity: What Determines Price
Not all opals are created equal, and understanding value factors helps collectors make informed decisions. The most valuable opals display brilliant, vibrant colors across the entire color spectrum, particularly red and orange, which are rarer. Black opal from Lightning Ridge commands premium prices due to its scarcity and dramatic dark body tone that makes colors appear more vivid.
Body tone, brightness, pattern, and size all influence value. A small stone with exceptional color can be worth more than a large stone with weak color play. Provenance matters too—documented Australian origin adds value and authenticity.
Authentication: Protecting Your Investment
Myth: All beautiful opals are natural solid stones.
Fact: The market includes solid opals, doublets (thin opal slices attached to backing), triplets (opal with backing and clear top), and synthetic opals. Each has its place and price point, but collectors should know what they're purchasing.
Reputable dealers provide certificates and clearly identify stone construction. Doublets and triplets aren't "fake"—they're legitimate products at lower price points—but they should be sold as such. Synthetic opals, while visually similar, lack natural formation and investment value.
Care and Maintenance: Simple Guidelines
Caring for opal is straightforward: clean with mild soap and water, store away from extreme heat, and remove jewellery during heavy physical activity. Periodic wearing actually benefits opals, as skin oils can enhance their appearance. Professional jewellers can check settings annually to ensure stones remain secure.
The Collector's Advantage
Understanding these facts empowers collectors to appreciate opal's true nature. This gemstone offers something no other can: absolute uniqueness. No two natural opals are identical, making every piece genuinely one-of-a-kind. Combined with Australia's dominance in production and the stone's rich geological history, opal represents both an aesthetic treasure and a fascinating natural phenomenon worth collecting, wearing, and celebrating.