metamorphic

Red Aventurine / Orange Quartzite

Silicon Dioxide (SiO2) with hematite/goethite inclusions

AI-generated identification · may be incorrect

Hardness: 7 Mohs; Color: Orange-red to brick red; Luster: Vitreous to dull; Crystal structure: Trigonal (hexagonal); Specific gravity: 2.64-2.69

Hardness: 7 Mohs
Color: Orange-red to brick red
Luster: Vitreous to dull

Identified July 14, 2026More metamorphic →

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Physical properties

Hardness: 7 Mohs; Color: Orange-red to brick red; Luster: Vitreous to dull; Crystal structure: Trigonal (hexagonal); Specific gravity: 2.64-2.69

Formation & geological history

Formed through the regional metamorphism of quartz-rich sandstone. The distinctive reddish hue is caused by inclusions of hematite or goethite during the crystallization process.

Uses & applications

Commonly used in jewelry as beads or cabochons, as tumbled stones for crystal healing, and as decorative landscaping material.

Geological facts

Red Aventurine is known for a metallic glitter effect called 'aventurescence' when light reflects off the mineral inclusions within the quartz.

Field identification & locations

Identify by its sandy texture (orthoquartzite base) and consistent reddish-orange color that does not scratch easily with a steel knife. Frequently found in India, Brazil, and Russia.