Fireable White Opal – Green Fire Flash Round Cabochon

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Galaxy Opal® Cabochon White Opal Green Fire

(Two sizes available for now-Limited stock until next order)

The fire of natural opal. The resilience of a lab. Galaxy Opal® is chemically identical to natural precious opal — composed of silica and water — delivering the same vivid play-of-colour and fire, with the extraordinary added benefit of heat resistance up to 900°C. Fireable in metal clay, kiln, torch, and compatible with borosilicate glass. Real opal. Unmined. Uncompromising.

• Lab-grown over approximately one year — chemically identical to natural opal
• Composed of silica and water — no resin
• No cracking, crazing or yellowing
• Crisp white with vivid green fire flash
• Heat resistant up to 900°C — compatible with borosilicate glass (33 COE)
  
• Suitable for glassblowing, lampworking, metal clay, kiln firing and torch firing
• Works well with jewellery plating
  
• Flat backed — ideal for bezel setting, wire wrapping, and resin work

Technical details: Mohs hardness 5.5 · Specific gravity 1.90–2.20 · Heat resistance up to 900°C. Chemical resistance to Thinner, Methanol, Acetone (OTHER CHEMICALS CAN DAMAGE THE OPAL.)

Select your preferred size from the dropdown. Perfect for pendants, rings, statement jewellery and metal clay, glass blowing, inlay in glass, glass fusing.

Galaxy Opal® is a versatile and innovative material — results will vary depending on your technique, tools, and firing method. The information provided is intended as a guide only; careful preparation and testing are recommended when firing in metal clay, kilns, or with a torch. Most of all, enjoy the process of creating!

Colour appearance may vary depending on lighting conditions and backing material. Images and videos are for illustrative purposes and the physical product may differ slightly.

Please download the guide for use in metal clay below.