What is Precious Opal? An explanation of the origin and meaning of its gemstone colors and color combinations.

Gemstone Color Encyclopedia
プレシャスオパール
English namePrecious Opal
KatakanaPrecious Opal
HEX#EAE6E6
RGB234, 230, 230
MineralogySilicate minerals

What is precious opal? Origin and mineralogy

The name precious opal is said to originate from the ancient Sanskrit word "upala," meaning "gemstone." This became "opallios" in Greek, meaning "to see the change of color," and then "opalus" in Latin, eventually leading to the current name "opal." As the name suggests, the most distinctive feature of this gemstone is its "play of color," where rainbow colors shimmer and shimmer within the stone.

Mineralogically, precious opal is an amorphous hydrated silicate mineral. Over millions of years, silica-containing water slowly seeps into the crevices of the rock, and as the water evaporates, tiny silica spheres are formed. The regular arrangement of these silica spheres causes light to diffract and interfere, creating a rainbow-colored shimmer. The color that appears depends on the size of the silica spheres; smaller ones emit blue or purple light, while larger ones emit red or orange light.

The main source of opals is Australia, which accounts for over 90% of the world's production. Black opals from Lightning Ridge and white opals from Coober Pedy are particularly world-renowned. Beautiful precious opals are also found in other countries such as Mexico, Ethiopia, and Brazil.

Precious opal contains approximately 3 to 10¹TP3T of water, making it a very delicate gemstone. It is susceptible to sudden temperature changes and drying, and can crack from strong impacts. This fragility is also one of the gemstone's charms.

The history and culture of precious opals

Precious opals have captivated people since ancient times. In his book "Natural History," the ancient Roman naturalist Pliny praised opals as "a miraculous gem that combines the fiery red of rubies, the shimmering purple of amethyst, and the sea-green of emeralds—the beauty of all gemstones." For the Romans, opals were symbols of hope and purity, and were considered lucky charms.

Although it was highly valued as a lucky stone in medieval Europe, in the 19th century, Walter Scott's novel "Anne of Guierstein" depicted the heroine wearing an opal and suffering misfortune, which temporarily led to the widespread image of it being an ominous stone.

However, it was Queen Victoria of England who reversed this unpopularity. The Queen loved opals dearly and gave magnificent opals as wedding gifts to her five daughters. The royal family's fondness for opals dramatically revived their popularity, and they once again became cherished as a symbol of good fortune and hope. In Arab legend, opals were believed to be formed when flashes of lightning struck the earth and solidified.

Precious opals and color psychology

The milky white base color of precious opal (#EAE6E6) symbolizes purity, innocence, and new beginnings. The iridescent shimmer that appears on this pure canvas represents diversity, possibilities, and limitless creativity. Its nature of not being limited to a single color is said to free the mind from preconceived notions and bring about free thinking and inspiration.

Precious opal, whose gemstone meaning is "stone of hope," has long been believed to bring a bright light to the wearer's heart and alleviate feelings of melancholy. Its play of color, which changes its appearance depending on the viewing angle, is said to bring out hidden talents and charms, and to help with self-expression. It is like a lucky charm that provides positive energy when you are at a turning point in your life or starting a new challenge.

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Color scheme suggestions for precious opal

Slate Blue (#6A5ACD)

The blue shimmer and resonance seen in the play of color of the precious opal create an intelligent and sophisticated impression. This understated combination is also suitable for formal designs.

Misty Rose (#FFE4E1)

The soft glow of opal is gently complemented by a pale pink hue, creating a romantic and feminine atmosphere. It blends well with the skin and is perfect for when you want to give off an elegant and delicate impression.

Celadon Green (#ACE1AF)

The green in the iridescent shimmer of the opal harmonizes with the color, creating a fresh and tranquil impression. This natural and soothing color scheme will bring peace to your mind.

Practical Scenes

In the world of jewelry, precious opals are typically given a "cabochon cut," a dome-shaped polishing technique, to maximize their play of color. Their enchanting sparkle makes them the star of various accessories, including rings, necklaces, and earrings. However, due to their fragile nature, bezel settings that completely encase the stone are preferred.

In fashion, the milky white and iridescent shimmer of precious opal adds elegance and glamour to special occasion attire such as wedding dresses and party dresses. Its beauty is further enhanced when combined with lustrous and transparent materials such as silk and organza.

In the fields of interior and web design, #EAE6E6, the base color of Precious Opal, is highly effective as a base color that makes spaces appear bright and clean. While giving a minimalist and sophisticated impression, by scattering rainbow-like pastel colors as accent colors, you can create a playful and creative space.

FAQ

❓ What is the difference between precious opal and common opal?

The biggest difference is the presence or absence of "play of color." Precious opal exhibits a rainbow-like shimmer because the silica particles inside diffract light.

On the other hand, common opal lacks iridescence and is semi-transparent to opaque with a uniform color. Pink opal, blue opal, and green opal are examples of common opal.

❓ Are there any precautions I should take when caring for precious opals?

Precious opal is a delicate gemstone that contains moisture. Sudden temperature changes and drying can cause cracking, so please avoid storing it in direct sunlight.

Furthermore, it is fragile and easily damaged by impact, so using an ultrasonic cleaner is strictly prohibited. For everyday care, the safest method is to simply wipe away sweat and sebum with a soft cloth after wearing.

❓ Is black opal a type of precious opal?

Yes, black opal is considered the most valuable type of precious opal. As the name suggests, its base color (body color) is black or dark gray, which makes the play of color that appears on top of it stand out more vividly, creating a dramatic beauty.

The main production area is Lightning Ridge in New South Wales, Australia, and it fetches high prices due to its rarity.

A gemstone color similar to precious opal.

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