metamorphic
Red Jade (Dyed Quartzite)
Silicon Dioxide (SiO2) - variety Quartzite
Hardness: 7 Mohs; Color: Artificially dyed vibrant red/magenta; Luster: Vitreous; Crystal Structure: Hexagonal (trigonal) microcrystalline; Cleavage: None; Specific Gravity: 2.6-2.65
- Hardness
- 7 Mohs
- Color
- Artificially dyed vibrant red/magenta
- Luster
- Vitreous
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Physical properties
Hardness: 7 Mohs; Color: Artificially dyed vibrant red/magenta; Luster: Vitreous; Crystal Structure: Hexagonal (trigonal) microcrystalline; Cleavage: None; Specific Gravity: 2.6-2.65
Formation & geological history
Formed from the metamorphism of quartz-rich sandstone. Historically, most 'Red Jade' in commercial jewelry is actually natural white quartzite that has been heat-treated and dyed to mimic rarer gems.
Uses & applications
Predominantly used for costume jewelry, beadwork, and decorative carvings in the 'New Age' or metaphysical crystal market.
Geological facts
While true red jade (Jadeite) exists in nature, it is extremely rare and usually presents as a rusty-brownish red. Translucent vibrant red beads like these are almost universally dyed quartzite, a common practice in the gemstone industry to create affordable alternatives.
Field identification & locations
Identify by looking for dye concentration in the surface cracks/grain boundaries under magnification. It is found globally in metamorphic belts. For collectors, it is valued for its aesthetics rather than mineral rarity.
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