
Synthetic Mineral Simulant / Glass
Opalite (Man-made Glass)
Synthetic Silicon Dioxide Glass (SiO2 + metal oxides)
Hardness: 5-6 (Mohs scale); Color: Translucent white to milky blue with a peach/orange 'inner glow' (opalescent); Luster: Vitreous; Crystal structure: Amorphous (non-crystalline); Cleavage: Conchoidal fracture.
- Hardness
- 5-6 (Mohs scale)
- Luster
- Vitreous
Identified More synthetic mineral simulant / glass →
Identify your own rocks.
Get a report just like this from any photo, free.
Physical properties
Hardness: 5-6 (Mohs scale); Color: Translucent white to milky blue with a peach/orange 'inner glow' (opalescent); Luster: Vitreous; Crystal structure: Amorphous (non-crystalline); Cleavage: Conchoidal fracture.
Formation & geological history
Opalite is a synthetic, man-made glass produced in industrial settings. It is created by melting silica and mixing it with metals like dolomite and magnesium to achieve its characteristic opalescence. Unlike natural opal, it does not form over geological timescales.
Uses & applications
Primarily used for decorative purposes, jewelry (pendants, beads), pocket stones (like the star-shaped 'worry stone' shown), and in metaphysical or holistic practices as a meditation aid.
Geological facts
Although it shares a name similar to 'Opal', it is not a natural stone. It is often referred to as 'Sea Opal,' 'Argenon,' or 'Tiffany Stone' (though the latter is also the name of a natural fluorite-rich rock). It exhibits the Tyndall effect, scattering light to appear blue against a dark background and orange against a light one.
Field identification & locations
Identify by looking for small bubbles (typical of glass), a lack of natural inclusions, and a uniform, 'perfect' appearance. In the field, it is never found in a natural outcrop; it is exclusively sold as a manufactured product. It will feel warmer to the touch than natural stone.
More like this
Other synthetic mineral simulant / glass specimens
Cubic Zirconia (as used in jewelry setting)
Zirconium dioxide (ZrO2)
mineral
Cubic Zirconia
Zirconium dioxide (ZrO2)
mineral
Cubic Zirconia
Zirconium dioxide (ZrO2)
mineral
Cubic Zirconia (CZ)
Zirconium dioxide (ZrO2)
mineral
Cubic Zirconia (CZ)
Cubic Zirconium Dioxide (ZrO2)
mineral (synthetic)
Cubic Zirconia (Faceted)
Zirconium dioxide (ZrO2)
mineral