Stichtite in Serpentine
Stichtite dispersed in Serpentine matrix · Mineral Specimen and Decorative Stone
Crystal System
Trigonal (Stichtite) and Monoclinic/Orthorhombic (Serpentine)
Mineral Group
Carbonates (Stichtite) and Silicates (Serpentine)
Chemical Formula
Mg6Cr2CO3(OH)164H2O (Stichtite) with (Mg,Fe)3Si2O5(OH)4 (Serpentine)
Formation Process
Metamorphic and hydrothermal alteration of ultramafic rocks such as peridotite and dunite
About This Crystal
This specimen exhibits a vibrant pale green to yellowish-green matrix of serpentine intergrown or banded with contrasting metallic or silvery grey to lilac patches, creating a distinctive mottled appearance. The luster is waxy to greasy on the serpentine portions and sub-metallic to pearly on the associated mineral veins.
Physical Characteristics
Color ranges from pale yellow-green to apple green with silvery-grey inclusions. Streak is white to pale green. Cleavage is perfect in one direction for serpentine minerals, fracture is uneven to splintery, specific gravity is approximately 2.5 to 2.6, tenacity is compact and tough.
Optical Properties
Biaxial negative for serpentine components with low birefringence. Generally translucent to opaque with no significant chatoyancy or play of color.
Hardness & Durability
Origin Region
Tasmania (Australia), Barberton greenstone belt (South Africa), and Canada
Hardness & Durability
Mohs hardness is around 3.5 to 4.5 for serpentine, making it soft and relatively fragile. Not recommended for daily wear jewelry without protective settings.
Care & Maintenance
Clean with a soft damp cloth and mild soap. Avoid ultrasonic cleaners, harsh chemicals, and prolonged exposure to direct sunlight or acidic substances.
Rarity & Value
Uncommon mineral combination primarily sourced from specific localities like Tasmania. Valued among collectors of decorative and serpentine-group minerals.
Special Characteristics
Features an attractive natural color contrast between the soft green serpentine host rock and the shimmering metallic-to-lilac accessory minerals, making it highly prized for lapidary work.
Lore & History
Historically used as a decorative ornamental stone. In modern metaphysical practices, it is believed to promote emotional resilience, harmony, and compassion, associated traditionally with the heart chakra.