Synthetic Mineral Simulant / Glass

Opalite (Man-made Glass)

Synthetic Silicon Dioxide Glass (SiO2 + metal oxides)

AI-generated identification · may be incorrect

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 March 25, 2026More synthetic mineral simulant / glass →

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Physical properties

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.