mineral
Tumbled Red Jasper
Quartz (Microcrystalline variety of chalcedony, SiO2)
AI-generated identification · may be incorrectHardness: 6.5 - 7 on the Mohs scale; Color: Red to reddish-brown; Luster: Vitreous to dull; Crystal structure: Trigonal (microcrystalline); Cleavage: None, exhibits conchoidal fracture; Specific gravity: 2.58 - 2.91
- Hardness
- 6
- Color
- Red to reddish-brown
- Luster
- Vitreous to dull
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Physical properties
Hardness: 6.5 - 7 on the Mohs scale; Color: Red to reddish-brown; Luster: Vitreous to dull; Crystal structure: Trigonal (microcrystalline); Cleavage: None, exhibits conchoidal fracture; Specific gravity: 2.58 - 2.91
Formation & geological history
Formed through the hydrothermal deposition of silica-rich fluids or precipitation in sedimentary environments, often replacing organic material or filling cavities in volcanic rocks.
Uses & applications
Used for lapidary arts, making tumbled stones, decorative ornaments, cabochons for jewelry, and crystal healing.
Geological facts
Jasper has been prized since ancient times for its rich red color and was used by ancient peoples to make seals, amulets, and tools. It is mentioned in various historical and religious texts for its protective and grounding energies.
Field identification & locations
Easily identified by its opaque red color, waxy-to-vitreous luster when polished, and conchoidal fracture. Commonly found worldwide including in India, Brazil, Russia, France, and the USA.
