Opal

Opal is a colorful stone that sparkles with many colors, just like a rainbow! Each opal is unique.

Appearance

The Opal is famous for its stunning 'play-of-color,' a rainbow flash of iridescent hues that shifts with light and angle. It often appears milky white, blue, or black, but can be found in almost any color, resembling a solidified rainbow. This unique visual effect makes it stand out from other gems.

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Opal

Interesting facts

Did you know NASA's Mars Reconnaissance Orbiter found opal deposits on the surface of Mars?

Opal is the national gemstone of Australia, which produces over 90% of the world's precious opals.

Some ancient cultures believed opals were formed when lightning bolts struck the Earth!

Unlike most gems, some opals can dry out and crack over time if not properly cared for!

Special abilities

Opal has microscopic silica spheres that diffract light, creating a dazzling 'play-of-color' that shifts like a living rainbow.

Opal is hydrated silica, meaning it contains water. This makes it surprisingly lighter than other gemstones of its size.

Measurements & details

Color Range: white, black, blue, green, red, orange, yellow, pink, brown, colorless, play-of-color
Hardness: 5.5
Luster: vitreous to waxy
Specific Gravity: 2.1

Traits

Fluorescent

Discover special rocks and minerals that glow with bright, exciting colors when you shine a certain type of light on them, like magic! These hidden colors are a spectacular natural secret.

Gemstone

Sparkle and shine with these precious minerals that come from the earth! Gemstones are beautiful, rare, and often cut and polished to create dazzling treasures.

Crystalline

Find minerals that have grown into beautiful, sparkly shapes with flat faces and sharp edges, like tiny natural sculptures. These amazing formations reflect light in unique ways!

Natural

These are wonderful things that come straight from the Earth, shaped by wind, water, and sun! Everything from towering trees to tiny pebbles is part of our natural world.