mineraloid (man-made)

Opalite

Synthetic Opalized Glass

Hardness: 5.5-6.0 Mohs; Color: Milky white with iridescent blue/orange glow; Luster: Vitreous/Glassy; Structure: Amorphous; Cleavage: None/Conchoidal fracture; Specific Gravity: 2.4-2.5

Hardness: 5
Color: Milky white with iridescent blue/orange glow
Luster: Vitreous/Glassy

Identified May 24, 2026More mineraloid (man-made) →

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Physical properties

Hardness: 5.5-6.0 Mohs; Color: Milky white with iridescent blue/orange glow; Luster: Vitreous/Glassy; Structure: Amorphous; Cleavage: None/Conchoidal fracture; Specific Gravity: 2.4-2.5

Formation & geological history

Opalite is a man-made synthetic glass designed to mimic the appearance of natural opals or moonstones. It is created by melting silica together with various minerals to achieve its signature opalescent effect. Unlike natural rocks, it does not have a geological age.

Uses & applications

Primarily used in decorative jewelry, beads, tumbling for metaphysical collections, and small figurines. It is popular in the 'healing crystal' market due to its aesthetic appeal.

Geological facts

While frequently sold as a natural stone, 'Opalite' is almost always glass. True 'natural opalite' is just common opal that lacks the play-of-color found in precious opal. The specimen pictured is the widely recognized synthetic version.

Field identification & locations

Identify by looking for small bubbles (indicative of glass), an overly uniform milky appearance, and a characteristic orange or blue 'glow' when held up to light. It is commonly found in gift shops and crystal boutiques.