Rock Identifier
Opalite (Synthetic Glass (Simulated Opal)) — gemstone
gemstone

Opalite

Synthetic Glass (Simulated Opal)

Hardness: 5-6 Mohs. Color: Translucent milky white/blue appearing orange/amber when light passes through it. Luster: Vitreous/Glassy. Structure: Amorphous. Specific Gravity: 2.4-2.5.

Hardness
5-6 Mohs
Luster
Vitreous/Glassy
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Physical properties

Hardness: 5-6 Mohs. Color: Translucent milky white/blue appearing orange/amber when light passes through it. Luster: Vitreous/Glassy. Structure: Amorphous. Specific Gravity: 2.4-2.5.

Formation & geological history

Opalite is a trade name for man-made opalescent glass. It is created by melting silica together with various minerals to create an iridescent, milky appearance that mimics natural opal.

Uses & applications

Primarily used in jewelry, decorative items, meditation tools, and crystal healing practices.

Geological facts

Unlike natural opal, which is formed from silica-rich water in sedimentary cracks, Opalite is manufactured. It shows a distinct 'Tyndall effect' where it appears blue in reflected light but orange or yellow in transmitted light.

Field identification & locations

Identify by looking for small air bubbles (which indicate glass) and a very consistent, smooth milky texture. Unlike natural opal, it lacks a complex 'play of color' or internal fire flakes.