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Bello Opal® Galaxy Opal cabochon is available in different kinds of shape. It is especially suitable for glassblowing or high-end jewellery market.

Sanwa offers opal cabochon from size 1.2mm to 50mm+ and they are available in different kinds of shape, such as round opal cabochon, oval opal cabochon, pearl opal cabochon, marquise opal cabochon, trillion opal cabochon, heart opal cabochon...etc. Custom shape is welcomed.


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Properties comparison to natural opal
Category Mineral Type Synthetic Opal Natural Opal
Silica & Water Silica & Water
MOHS Hardness
5.5 3-5.5
Specific Gravity
1.90-2.2 1.98-2.20
Heat Resistance
900 degree C. 100 degree C.
Product Features
Color Range
OP701 to OP713
Jewelry Plating
Galaxy Opal could work well with jewelry plating
Chemical Resistance

Thinner, Methanol, Acetone

Glass Compatibility
Galaxy Opal is glass compatible
Guarantee on quality
No Cracking, Crazing or Yellowing