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Stone 101

Opal

Not even a crystal. Opal is hardened silica gel, and the rainbow comes from tiny spheres.

Opal ranges from milky blue to cherry orange to rainbow flash. Here you'll find opal rings and bracelets, dendritic opal, cherry opal, and some opalite and opal aura pieces, labelled as such.

Colour
White, blue, orange, rainbow flash
Hardness
Mohs 5.5 to 6.5
Found in
Australia, Ethiopia, Mexico
Birthstone
October
Family
Mineraloid (hydrated silica)

Shop Opal by shape

54 Results

Opalite Bracelet (Synthetic) 8mm from The Rock Space
Opalite Bracelet (Synthetic) from The Rock Space

Opalite Bracelet (Synthetic)

from $7.00

Unit price
per 

3 sizes
  • 8mm
  • 4mm
  • Chip
Opal Bead Bracelet 8mm African Green from The Rock Space
Opal Bead Bracelet from The Rock Space

Opal Bead Bracelet

from $19.99

Unit price
per 

3 sizes
  • 8mm African Green
  • 8mm Pink
  • 4mm
Opalite Bead Strand (Synthetic) 15" - 6mm from The Rock Space
Opalite Bead Strand (Synthetic) from The Rock Space

Opalite Bead Strand (Synthetic)

from $7.00

Unit price
per 

5 sizes
  • 15" - 4mm
  • 15" - 6mm
  • 15" - 8mm
  • 15" - 12mm
  • 32" - 5-8mm Chip
Opalite Female Body Carving - Mini (Synthetic) from The Rock Space
Opalite Female Body Carving - Mini (Synthetic) from The Rock Space
Cherry Opal Mineral (Hydrated) from The Rock Space
Cherry Opal Mineral (Hydrated) from The Rock Space

Cherry Opal Mineral (Hydrated)

$99.00

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per 

Opal Aura Double Terminated - 925 Silver Pendant from The Rock Space
Opal Aura Double Terminated - 925 Silver Pendant from The Rock Space
Copal Incense Sticks - 20 Sticks from The Rock Space
Copal Incense Sticks - 20 Sticks from The Rock Space

Copal Incense Sticks - 20 Sticks

$3.99

Unit price
per 

Opalite Female Body Carving - Mini 3pk (Synthetic) from The Rock Space
Opalite Female Body Carving - Mini 3pk (Synthetic) from The Rock Space
Dendritic Opal Tumbled Stones from The Rock Space
Dendritic Opal Tumbled Stones from The Rock Space

Dendritic Opal Tumbled Stones

$64.00

Unit price
per 

5 sizes
  • Extra Small
  • Small
  • Medium
  • Large
  • Extra Large
Willow Earrings - Opal Teardrop Hooks from The Rock Space
Willow Earrings - Opal Teardrop Hooks from The Rock Space
Partner brand

Willow Earrings - Opal Teardrop Hooks

$55.00

Unit price
per 

Stella Opal Celestial Necklace from The Rock Space
Stella Opal Celestial Necklace from The Rock Space
Partner brand

Stella Opal Celestial Necklace

$45.00

Unit price
per 

Jada Opal Drop Necklace - Gold from The Rock Space
Jada Opal Drop Necklace - Gold from The Rock Space
Partner brand

Jada Opal Drop Necklace - Gold

$65.00

Unit price
per 

Haylo Earrings - Sky Blue Opal from The Rock Space
Haylo Earrings - Sky Blue Opal from The Rock Space
Partner brand

Haylo Earrings - Sky Blue Opal

$65.00

Unit price
per 

Indi Opal Necklace from The Rock Space
Indi Opal Necklace from The Rock Space
Partner brand

Indi Opal Necklace

$40.00

Unit price
per 

Adora Necklace - White Opal from The Rock Space
Adora Necklace - White Opal from The Rock Space
Partner brand

Adora Necklace - White Opal

$50.00

Unit price
per 

Tiffany Huggie Hoop with Opal Charms from The Rock Space
Tiffany Huggie Hoop with Opal Charms from The Rock Space
Partner brand

Tiffany Huggie Hoop with Opal Charms

$50.00

Unit price
per 

The basics

So what is opal, really?

Opal is silica with water locked inside. It never forms a crystal grid, so geologists call it a mineraloid instead of a mineral.

In precious opal, tiny silica spheres sit in neat rows and split light into colours. Common opal, like blue, cherry and dendritic opal, glows softly instead.

Rituals, not rules

How people use it

  • It's the October birthstone, so a ring or pendant is a classic birthday gift.
  • People wear it in a ring or bracelet so the colour catches the light all day.
  • It's traditionally linked with creativity, so some folks keep a piece on the desk where they make things.

These are traditions people enjoy, not promises. Pick the one you keep coming back to.

Care

Looking after your Opal

  • Water: quick rinse only
  • A quick rinse in lukewarm water is fine. Dry it right away and never soak it.
  • Keep it away from heat, hot cars and sudden temperature changes, which can crack it.
  • It's softer than quartz, so store it apart from harder stones.

Straight talk

Real, treated or lab-made?

Opalite is man-made glass, and it's gorgeous, but it isn't opal. Opal aura is quartz with a thin metal coating. Lab-grown opal and thin slices glued to backing also exist. TRS labels every synthetic or coated piece in the title, like "(Synthetic)" or "Aura".

Good questions

Opal questions people ask us

What does opal mean?

Opal is traditionally linked with creativity, hope and self-expression. Most people just love the colour play.

Is opalite the same as opal?

No. Opalite is man-made glass with a milky blue glow. Opal is natural silica from the ground. Both are pretty, they're just different things.

Can opal go in water?

A quick rinse is fine for most opal. Dry it right after and don't soak it. Some Ethiopian opal soaks up water and goes cloudy for a while, so be extra gentle with it.

Why do opals crack?

Opal holds water. Heat, very dry air or a sudden temperature change can make it lose water fast and form fine cracks. Store it at room temperature, away from heaters.