Serpentine (New Jade)
Serpentine Group (Antigorite or Lizardite species) · Semi-Precious Gemstone / Ornamental Mineral
Crystal System
Monoclinic; typically occurs in massive, microcrystalline, or fibrous habits.
Mineral Group
Silicates; Phyllosilicate (Sheet Silicate) group
Chemical Formula
Mg3Si2O5(OH)4 (contains traces of iron, nickel, or aluminum)
Formation Process
Metamorphic; formed by the 'serpentinization' of magnesium-rich rocks (peridotite/dunite) at low temperatures and high pressures in the presence of water.
About This Crystal
A pale yellowish-green to lime-green specimen with a waxy to greasy luster. It is translucent to nearly opaque with a microcrystalline, somewhat granular texture on the surface.
Physical Characteristics
Color: Pale green; Streak: White; Cleavage: Absent in massive forms; Fracture: Conchoidal to splintery; Specific Gravity: 2.44-2.62; Fluorescence: Generally inert.
Optical Properties
Refractive Index: ~1.56; Birefringence: Weak; Non-pleochroic; Singly refractive in massive aggregate form; lacks fire or dispersion.
Hardness & Durability
Origin Region
Prominent sources include China, Canada, USA, and Afghanistan; found in ultramafic igneous rocks.
Hardness & Durability
Mohs Hardness: 2.5 to 5 (relatively soft); Toughness: Poor; very sensitive to scratches and impact; unsuitable for rings but okay for pendants.
Care & Maintenance
Avoid chemicals, acids, and ultrasonic cleaners. Clean only with warm soapy water. Store away from harder gems like quartz or diamonds to prevent scratching.
Rarity & Value
Common; relatively inexpensive. Value depends on transparency and color uniformity. Often used as an affordable substitute for nephrite jade.
Special Characteristics
Often exhibits a distinct 'greasy' feel when handled and can show a subtle mottled color distribution typical of massive phyllosilicates.
Lore & History
Historically used by ancient Romans for protection against sorcery. In modern lore, it is believed to assist in meditation and the awakening of Kundalini energy.