Jadeite
Jadeite var. Imperial or Icy Jadeite · Precious Gemstone
Crystal System
Monoclinic; granular or fibrous microcrystalline habit in massive forms; rarely found as individual crystals
Mineral Group
Silicates; Pyroxene group (Inosilicate)
Chemical Formula
NaAlSi2O6 (Sodium Aluminum Silicate), often with Cr, Fe, or Mg trace elements
Formation Process
Metamorphic; forms under high pressure and low temperature conditions typically in subduction zones within serpentinites
About This Crystal
High-quality translucent 'Icy' variety with a pale mint to seafoam green hue. Shows an oily to vitreous luster and a smooth cabochon surface
Physical Characteristics
Color: Pale green; Streak: White; Cleavage: Two directions at 90 degrees (rarely visible in jade); SG: 3.25 to 3.35; Fracture: Splintery to uneven
Optical Properties
Refractive Index: 1.666; Birefringence: 0.012 to 0.020; DRP: Doubly refractive; generally lacks pleochroism in pale specimens
Hardness & Durability
Origin Region
Mainly Myanmar (Burma); also found in Guatemala, Japan, Russia, and California
Hardness & Durability
Mohs Hardness: 6.5 to 7; Extremely high toughness due to interlocking fibrous structure; very durable for daily jewelry wear
Care & Maintenance
Clean with warm soapy water and soft brush; avoid harsh chemicals and ultrasonic cleaners if the stone is wax-treated (Type B or C)
Rarity & Value
Common to Very Rare (based on quality); value determined by transparency and color saturation; higher value for Burmese origin
Special Characteristics
Displays 'Icy' translucency; can exhibit fluorescence if dyed or treated (Type B/C); high acoustic resonance when struck
Lore & History
Highly prized in Chinese culture as 'the stone of Heaven'; symbolizes purity, longevity, and protection since the Neolithic period