Opal

Opal, natural gemstone, origin, characteristics, symbolism and jewelry

Stone profile

• Family or nature: Amorphous hydrated silica, with or without a play of color
• Colors: White, black, gray, orange, pink, blue or multicolored
• Symbolic markers: creativity, uniqueness and wonder

Characteristics and origin

Opal contains a variable proportion of water in its structure. Precious opal displays a play of color caused by the arrangement of tiny silica spheres, whereas common opal does not. Australia, Ethiopia and Mexico are among the major sources.

Traditional symbolism

In crystal healing traditions and certain cultural practices, this material is associated with the following themes: creativity, uniqueness and wonder. These associations are cultural, spiritual or personal markers. They do not describe an effect produced by the stone.

Opal in jewelry

Its hardness of approximately 5.5 to 6.5 and its sensitivity to dehydration require a protective setting. Doublets and triplets are common assemblies that should be identified as such.

Care: Avoid heat, extreme dryness, ultrasonic cleaners, steam and impacts. Clean gently with a damp cloth; do not soak doublets or triplets.

Discover more

Consult our A–Z Gemstone Guide to compare materials, colors and care instructions.

Key takeaways

Opal is a hydrated silica famous for its play of color, but its structure requires appropriate care.

Important note: No physical or psychological effects are scientifically proven. Crystal healing does not replace medical advice, diagnosis or treatment.