
sedimentary
Red Jasper
Silicon Dioxide (SiO2)
Hardness: 6.5-7 (Mohs); Color: Brick red to brownish red; Luster: Dull to vitreous; Crystal Structure: Microcrystalline trigonal; Cleavage: None; Specific Gravity: 2.58-2.91
- Hardness
- 6
- Color
- Brick red to brownish red
- Luster
- Dull to vitreous
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Physical properties
Hardness: 6.5-7 (Mohs); Color: Brick red to brownish red; Luster: Dull to vitreous; Crystal Structure: Microcrystalline trigonal; Cleavage: None; Specific Gravity: 2.58-2.91
Formation & geological history
Formed from the deposition of silica-rich micro-organisms or hydrothermal fluids in sedimentary environments. Its red color comes from iron inclusions (hematite).
Uses & applications
Used frequently in jewelry (beads, cabochons), ornamental carvings, and as a healing stone in metaphysical communities.
Geological facts
Red Jasper was known as a stone of endurance and protection in ancient cultures, often used by ancient Egyptians in amulets to enhance virility.
Field identification & locations
Identify by its deep red color, high hardness (cannot be scratched by a steel knife), and smooth, waxy feel when polished. Commonly found in riverbeds and desert environments globally.
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