The opal rough stones are in irregular shape. It is a result of lab-grown process, as well as the result after quality check. The average thickness is about 15-18mm with estimated length 30-100mm. And as the rough stones are unpolished, you may find that the surface color is different than expected. But we guarantee the real quality after polishing meets the standard.
It is easy to handle the cutting of Bello opal rough. We offer various cut stones at high quality and wide color choices. Ordering cut stones from us is another good option for your business.
A Cut pattern is the surface of the rough. The size can be bigger than 70mm. It is the most popular pattern in the market.
B Cut pattern is the side of the rough. It shows vertical fire which represents the growth pattern. It is an unique feature of authentic "Lab-Grown" synthetic opal.
Bello Opal is the mainstream of opal inlay. The intense fire makes the opals shinny even when the opals are thin and small.
The crushed opal is widely used for inlay design, such as ring, furniture etc.
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. |
Color Range |
OP01 to OP96 |
---|---|
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 |