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SANWA PEARL & GEMS LIMITED
Authorized Distributor by KYOCERA

NEWS: 2018 The September Hong Kong Jewellery & Gem Fair ( 12 - 16 September 2018, AsiaWorld - Expo, Hong Kong (AWE), Booth# 3J-14 )Read More >
[NEW] " Notice to ALL CUSTOMERS - Bello Opal Authentic Statement "

ROUGH STONE

Bello Opal® rough stone (Polymer Impregnated Synthetic Opal) is only available in irregular size and shape. You may order opal rough by gram/kilo. And as the rough stones are unpolished, you may find that the stone color is different from the product color. If you have any questions on this issue, please contact with Sanwa Sales Team.

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Properties comparison to natural opal

Category Polymer Impregnated Synthetic Opal Natural Opal
Elements
80% Silica & 20% Resin Silica & Water
MOHS Hardness
4 3-5.5
Specific Gravity
1.80-1.90 1.98-2.20
Heat Resistance
130 degree C. 100 degree C.
Product Features
Color Range
OP01 to OP78
Degree of transparency
Relatively low
Jewelry Plating
Bello Opal® could work well with jewelry plating
Chemical Resistance
Thinner, Methanol, Acetone
Glass Compatibility
Bello Opal® is not glass compatible. Please refer to "Galaxy Opal"
Guarantee on quality
No Cracking, Crazing or Yellowing