sedimentary
Red Jasper
Silicon Dioxide (SiO2) with Hematite inclusions
Hardness: 6.5-7 Mohs; Color: Opaque brick red to orange; Luster: Vitreous to waxy; Crystal Structure: Trigonal (Microcrystalline); Cleavage: None (conchoidal fracture); Specific Gravity: 2.58-2.91
- Hardness
- 6
- Color
- Opaque brick red to orange
- Luster
- Vitreous to waxy
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Physical properties
Hardness: 6.5-7 Mohs; Color: Opaque brick red to orange; Luster: Vitreous to waxy; Crystal Structure: Trigonal (Microcrystalline); Cleavage: None (conchoidal fracture); Specific Gravity: 2.58-2.91
Formation & geological history
Formed when silica-rich fluids permeate through volcanic or sedimentary rock, with the red color caused by iron oxide (hematite) inclusions during the solidification process.
Uses & applications
Used extensively in jewelry as cabochons or beads, ornamental carvings, and historical talismans. Also used as a decorative stone in mosaics and interior design.
Geological facts
Known as the 'Supreme Nurturer' in metaphysical circles. In ancient times, it was called the 'rain-bringer' and was believed to protect warriors and provide courage.
Field identification & locations
Identify by its deep red color, high hardness (cannot be scratched by a steel knife), and characteristic conchoidal (shell-like) fracture. Found globally in India, Brazil, USA, and South Africa.
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