Rock Identifier
Jade Ring (Nephrite (Ca2(Mg,Fe)5Si8O22(OH)2) or Jadeite (NaAlSi2O6)) — gemstone
gemstone

Jade Ring

Nephrite (Ca2(Mg,Fe)5Si8O22(OH)2) or Jadeite (NaAlSi2O6)

Hardness: 6-7 on the Mohs scale, Color: Green, translucent to opaque, Luster: Vitreous to greasy, Crystal structure: Monoclinic, Cleavage: None (exceptionally tough and interlocking crystal structure), Specific gravity: 2.90 to 3.34.

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Physical properties

Hardness: 6-7 on the Mohs scale, Color: Green, translucent to opaque, Luster: Vitreous to greasy, Crystal structure: Monoclinic, Cleavage: None (exceptionally tough and interlocking crystal structure), Specific gravity: 2.90 to 3.34.

Formation & geological history

Formed under high-pressure, low-temperature metamorphic conditions, typically in serpentinized peridotites or subduction zone environments over millions of years.

Uses & applications

Used primarily for fine jewelry, carved ornaments, rings, bracelets, and historically for ceremonial weapons and artifacts.

Geological facts

Jade has been prized in East Asian, Mesoamerican, and New Zealand Maori cultures for thousands of years, symbolizing purity, status, and protection. It is uniquely tough and difficult to break due to its microcrystalline fibrous structure.

Field identification & locations

Identified by its rich green color, cool touch, high density, and extreme toughness. Common sources include Myanmar, China, Guatemala, and British Columbia, Canada.