EN
(0)
SANWA PEARL & GEMS LIMITED

NEWS: 2017 The September Hong Kong Jewellery & Gem Fair, 13-17 Sept, Booth # 3J-14Read More >

ROUGH STONE

Bello Opal® Jelly Collection 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 product color. If you have any questions on this issue, please contact with our Sanwa Sales Team.

Learn More

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
Op501 to OP545
Degree of transparency
Light color series are more translucent and OP531 has the highest degree of transparency.
Jewelry Plating
Jelly Opal could work well with jewelry plating
Chemical Resistance
Alcohol
Glass Compatibility
Jelly Opal is not glass compatible. Please refer to "Galaxy Opal".
Guarantee on quality
No Cracking, Crazing or Yellowing