Authorized Distributor by KYOCERA

10 things you need to know about "Synthetic Opal"

Oparex Opal

Oparex®, opal material from KYOCERA Corporation - Forbes Top Regarded Company, is a new product in the man-made opal market.

Oparex Opal is a heat-hardened of resin with a mixture of silica in a short period of time. Due to their formation feature, it is also named as "Resin Colloidal Imitation Opal". Different from lab-grown synthetic opal with high silica percentage, it only contains 25% of silica. It could also be described as Opal-like-plastic (OLP) as this is a new plastic material with color change effect.

Within Oparex Opal collection, Marble Opal is an interesting product as it displays a wave of color change like aurora borealis, so some people also called it as “Aurora kind opal”. Marble Opal color pattern is very irregular and will be very hard to have a standardized color range for mass production, especially when applies to small size design. Marble Opal is more suitable for product markets that need big size design.

Oparex Marble Opal has wave patterns that look like aurora or colored marble.


Color Chart


oparex opal beads


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Properties comparison between synthetic opal and imitation opal
Category Polymer Impregnated Synthetic Opal Resin Colloidal Imitation Opal
80% Silica & 20% Resin 25% Silica & 75% Resin
MOHS Hardness
4 2
Specific Gravity
1.80-1.90 1.35-1.40
Heat Resistance
130 degree C. 130 degree C.
Product Features
Options for fire pattern
A cut, B cut & C cut Non-directional wave pattern
Degree of transparency
Relatively low Relatively high
Jewelry Plating
Suitable Not suitable
Chemical Resistance
Thinner, Methanol, Acetone Methanol
Glass Compatibility
Synthetic Opal is not glass compatible. Please refer to "Galaxy Opal" Oparex Opal is not glass compatible. Please refer to "Galaxy Opal"