Rock Identifier
Blue opalite glass (likely man-made) (Opalite glass; a silica-based amorphous glass, not natural opal) — mineral
mineral

Blue opalite glass (likely man-made)

Opalite glass; a silica-based amorphous glass, not natural opal

AI-generated identification · may be incorrect

Smooth, polished, translucent milky blue with a warm edge glow; glassy luster and no crystal structure. Mohs hardness is typically about 5–6; composition and properties vary by manufacture.

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Physical properties

Smooth, polished, translucent milky blue with a warm edge glow; glassy luster and no crystal structure. Mohs hardness is typically about 5–6; composition and properties vary by manufacture.

Formation & geological history

The appearance is consistent with manufactured glass colored and opalesced during production, rather than a naturally formed geological material; it has no geological age.

Uses & applications

Used for inexpensive jewelry, beads, cabochons, and decorative objects.

Geological facts

“Opalite” is a trade name commonly applied to imitation opal glass and should not be confused with natural opal or opalite (a mineral name sometimes used for common opal).

Field identification & locations

The uniform color, smooth surface, and glowing edge are typical of glass cabochons; natural opal usually shows distinctive play-of-color or more varied internal structure. Common in mass-market jewelry.