White Jade (Nephrite)

Physical Properties

Hardness: 6-6.5 (Mohs), Color: Creamy white to pale green, Luster: Greasy to waxy, Crystal Structure: Monoclinic (fibrous/interlocking), Cleavage: Splintery fracture, Specific Gravity: 2.9-3.0

Formation & Geological History

Formed through regional metamorphism of magnesium-rich limestones (dolomites) or ultrabasic rocks. The interlocking fibrous structure makes it exceptionally tough.

Uses & Applications

Primarily used in jewelry, ornamental carvings, and historical artifacts. Often referred to as 'Mutton Fat Jade' in high-quality white forms.

Geological Facts

Nephrite was used in ancient China since the Neolithic period for ritual objects. It is tougher and more resistant to fracturing than Jadeite due to its interwoven felt-like structure.

Field Identification & Locations

Identify by its waxy luster and extreme toughness; it is very difficult to break. Commonly found in British Columbia, New Zealand, Russia, and China.

Identified on: 4/15/2026

Mode: Standard