gemstone
Quartzite Jade (Consolidated Quartzite)
Quartzite (SiO2)
AI-generated identification · may be incorrectHardness of 7 on the Mohs scale, vitreous to greasy luster, fine-grained microcrystalline structure, color ranges from green to reddish-brown (often treated or dyed, as indicated by the Chinese certificate identifying it as '石英岩玉' or Quartzite Jade).
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Physical properties
Hardness of 7 on the Mohs scale, vitreous to greasy luster, fine-grained microcrystalline structure, color ranges from green to reddish-brown (often treated or dyed, as indicated by the Chinese certificate identifying it as '石英岩玉' or Quartzite Jade).
Formation & geological history
Formed through the metamorphism of quartz-rich sandstone under heat and pressure, often found in tectonic belts globally.
Uses & applications
Widely used for ornamental carvings, jewelry, bangles, and decorative items as a lower-cost alternative to jadeite or nephrite.
Geological facts
Often marketed commercially in Asia as 'East陵玉' or generic jade substitutes due to its similar appearance and high polish retention.
Field identification & locations
Identified by its conchoidal fracture, lack of cleavage, scratch test (scratches glass), and certification from gemological testing laboratories showing quartz composition.
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