sedimentary
Red Jasper
Silicon Dioxide (SiO2) with Hematite inclusions
Hardness: 6.5-7 Mohs; Color: Deep red to brick red; Luster: Vitreous to dull; Crystal structure: Trigonal (microcrystalline); Cleavage: None (conchoidal fracture); Specific gravity: 2.58-2.91.
- Hardness
- 6
- Color
- Deep red to brick red
- Luster
- Vitreous to dull
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Physical properties
Hardness: 6.5-7 Mohs; Color: Deep red to brick red; Luster: Vitreous to dull; Crystal structure: Trigonal (microcrystalline); Cleavage: None (conchoidal fracture); Specific gravity: 2.58-2.91.
Formation & geological history
Formed from the deposition of silica-rich fluids in volcanic or sedimentary environments. Its red color is derived from iron (hematite) impurities integrated during the low-temperature crystallization of quartz and chalcedony. Geological age varies widely by location, from Precambrian to recent.
Uses & applications
Commonly used in jewelry (cabochons, beads), lapidary art, ornamental carvings, and as a powerful grounding stone in metaphysical collecting.
Geological facts
Known as the 'Stone of Endurance' and 'The Supreme Nurturer' in ancient traditions. It has been used for thousands of years by cultures ranging from Ancient Egyptians to Native American tribes for amulets and tools.
Field identification & locations
Identify in the field by its waxy to vitreous luster (especially when wet), intense opaque red color, and lack of visible grains. It is extremely common in desert regions and river beds globally, notably in India, Brazil, and the Southwestern United States.
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