Jade (Jadeite or Nephrite)

Physical Properties

Hardness: 6.0–7.0 Mohs; Color: Varies from emerald green to white or lavender; Luster: Vitreous to greasy; Crystal structure: Monoclinic; Cleavage: None (fibrous/interlocking microstructure); Specific Gravity: 2.9–3.3.

Formation & Geological History

Formed in metamorphic rocks under high pressure and low temperature conditions, typically associated with subduction zones. Most deposits are millions of years old.

Uses & Applications

Used primarily in jewelry (bangles, beads), ornamental carvings, and historical tools or weapons due to its extreme toughness.

Geological Facts

Jade is known as the 'Stone of Heaven' in Chinese culture. While commonly green, pure jadeite is actually colorless; the green hue comes from trace amounts of chromium.

Field Identification & Locations

Identify by its 'cold' feel to the touch and high resonance (clinking two pieces creates a musical ring). Common locations include Myanmar (Burma), Guatemala, Russia, and Canada.

Identified on: 4/21/2026

Mode: Standard