mineral
Orange Aventurine (or Tumbled Carnelian)
Quartz (SiO2) with inclusions
Hardness: 7 on Mohs scale; Color: Orange, reddish-orange, translucent to sub-translucent; Luster: Vitreous to waxy; Crystal structure: Hexagonal (trigonal); Specific gravity: 2.65
- Hardness
- 7 on Mohs scale
- Color
- Orange, reddish-orange, translucent to sub-translucent
- Luster
- Vitreous to waxy
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Physical properties
Hardness: 7 on Mohs scale; Color: Orange, reddish-orange, translucent to sub-translucent; Luster: Vitreous to waxy; Crystal structure: Hexagonal (trigonal); Specific gravity: 2.65
Formation & geological history
Formed in metamorphic or igneous environments where quartz crystallizes with trace inclusions of hematite, goethite, or mica, imparting a distinct warm orange hue.
Uses & applications
Popular as a tumbled gemstone, used in lapidary work, jewelry making, wire-wrapping, decorative crafts, and crystal healing collections.
Geological facts
Aventurine gets its name from the Italian word 'a ventura' (by chance), referring to the discovery of aventurine glass. Natural orange aventurine gets its warm glitter or shimmer from tiny mineral inclusions.
Field identification & locations
Commonly found in India, Brazil, Russia, and Madagascar. Identified by its hardness (scratches glass), orange translucency, and smooth polished surface when tumbled.
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