Serpentine
Serpentine group minerals (Antigorite/Lizardite/Chrysotile) · Decorative Stone / Semi-Precious / Mineral Specimen
Crystal System
Monoclinic (typically massive, compact, or platy habit)
Mineral Group
Silicates (Phyllosilicates)
Chemical Formula
(Mg,Fe)3Si2O5(OH)4
Formation Process
Metamorphic, formed via the hydration and metamorphic alteration of ultramafic rocks (peridotite, dunite) from the Earth's mantle, typically at low to moderate temperatures
About This Crystal
Tumbled, smooth, bean-shaped pebble with a waxy to greasy luster. The color is a mottled dark forest green with lighter yellowish-green patches and veins creating an organic, serpentine pattern. Opaque with a smooth, polished tactile feel.
Physical Characteristics
Color ranges from olive green to brownish-green and black; white streak; cleavage is imperfect on basal planes (seldom seen in massive forms); fracture is uneven to splintery; specific gravity is approximately 2.5 to 2.6; tenacity is compact to somewhat brittle; generally non-magnetic.
Optical Properties
Biaxial negative with low birefringence; refractive index ranges from 1.56 to 1.57; typically displays a waxy to greasy luster with no strong pleochroism in massive varieties.
Hardness & Durability
Origin Region
Worldwide, notably found in California (USA), Canada, Italy, South Africa, and Russia; formed in areas of serpentinization
Hardness & Durability
Mohs hardness ranges from 2.5 to 5.5 depending on the specific mineral species (Antigorite and Lizardite tend to be on the higher end around 3.5-5); fair durability; can be easily scratched by harder stones and metals; not ideal for heavy-wear jewelry without protective settings.
Care & Maintenance
Clean with mild soapy water and a soft cloth; avoid ultrasonic cleaners, harsh chemicals, and prolonged exposure to direct sunlight or acidic substances; store separately in a soft pouch to prevent scratching.
Rarity & Value
Common; widely available as tumbled stones, carvings, and decorative architectural stone; generally inexpensive, though rare translucent varieties like precious serpentine can command higher collector values; typically untreated.
Special Characteristics
Often exhibits a mottled or webbed pattern resembling snake skin (hence the name); can occasionally show weak fluorescence under UV light depending on trace impurities.
Lore & History
Historically used as an amulet for protection against venomous bites, negative energy, and psychic attacks. Associated with the Heart Chakra in modern crystal healing traditions, believed to facilitate emotional healing, kundalini awakening, and connection with nature spirits. These are traditional cultural beliefs and not scientifically validated.