Rock Identifier
Tumbled orange aventurine quartz (Quartz, SiO₂, likely orange aventurine (quartzite with hematite/goethite inclusions)) — mineral
mineral

Tumbled orange aventurine quartz

Quartz, SiO₂, likely orange aventurine (quartzite with hematite/goethite inclusions)

AI-generated identification · may be incorrect

Hardness about 7 Mohs; translucent orange-brown body, vitreous luster, and no visible cleavage. The rounded, glossy surface indicates tumbling and polishing; inclusions create the cloudy color rather than distinct crystals.

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Physical properties

Hardness about 7 Mohs; translucent orange-brown body, vitreous luster, and no visible cleavage. The rounded, glossy surface indicates tumbling and polishing; inclusions create the cloudy color rather than distinct crystals.

Formation & geological history

Quartz-rich rock formed when silica crystallized or recrystallized, with iron-oxide inclusions producing orange coloration; geological ages vary by deposit. Common sources include India, Brazil, Russia, and parts of Africa.

Uses & applications

Used as an ornamental stone, worry stone, cabochon, bead, and low-cost collectible. It is generally valued for appearance rather than rarity.

Geological facts

Aventurine’s characteristic aventurescence is usually caused by reflective inclusions, though this specimen appears more translucent and uniformly orange than strongly sparkly. It may also be marketed as orange quartz or orange aventurine.

Field identification & locations

Identify by glassy luster, high scratch resistance, rounded polish, and quartz-like translucency; it should scratch ordinary glass but not be scratched by a steel knife. Exact identification would require testing for hardness, specific gravity, and inclusions.