gemstone
Yellow Jade (Quartzite Jade)
Quartzite (SiO2)
AI-generated identification · may be incorrectHardness: 7 on Mohs scale; Color: Yellow to orange-yellow; Luster: Vitreous to greasy when polished; Crystal Structure: Trigonal (microcrystalline quartz); Cleavage: None; Specific Gravity: 2.65
- Hardness
- 7 on Mohs scale
- Color
- Yellow to orange-yellow
- Luster
- Vitreous to greasy when polished
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Physical properties
Hardness: 7 on Mohs scale; Color: Yellow to orange-yellow; Luster: Vitreous to greasy when polished; Crystal Structure: Trigonal (microcrystalline quartz); Cleavage: None; Specific Gravity: 2.65
Formation & geological history
Formed through the metamorphism of quartz-rich sandstone or chert under heat and pressure, often colored yellow by iron oxide impurities.
Uses & applications
Primarily used for fine jewelry, carved ornaments, bangles, and decorative art pieces.
Geological facts
Often traded commercially under names like 'Huang Long Yu' or quartz-jade. The accompanying certification card identifies it as a quartz rock jadeite-like material.
Field identification & locations
Identified by its microcrystalline structure, vitreous luster, hardness of 7, and characteristic warm yellow coloring. Commonly sourced from China and various metamorphic terrains globally.
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