Ocean Jasper
Quartz var. Chalcedony (Orbicular Jasper) · Decorative Stone / Semi-Precious
Crystal System
Trigonal, microcrystalline massive habit
Mineral Group
Silicates
Chemical Formula
SiO2
Formation Process
Hydrothermal and sedimentary deposition involving silica-rich solutions filling volcanic vesicles and cavities
About This Crystal
An oval-shaped cabochon featuring distinctive orbicular and mottled patterns with earthy tones of green, grey, white, and brown, displaying a smooth polished surface and vitreous to waxy luster.
Physical Characteristics
Opaque to translucent, white streak, conchoidal fracture, specific gravity around 2.60 to 2.65, no cleavage, brittle tenacity
Optical Properties
Aggregated microcrystalline structure showing aggregate birefringence under polarized light, generally inert under UV
Hardness & Durability
Origin Region
Madagascar, specifically the northwestern coast along the Betsiboka River
Hardness & Durability
Mohs hardness of 6.5 to 7, good toughness making it suitable for general jewelry wear
Care & Maintenance
Clean with warm soapy water and a soft cloth; avoid harsh chemicals and prolonged direct sunlight to prevent fading
Rarity & Value
Uncommon to Rare depending on the specific pattern and color variety; valued for unique orbicular patterns from specific localities in Madagascar
Special Characteristics
Distinct multi-colored orbicular and eye-like concentric circular patterns formed by radial crystal growth
Lore & History
Often associated with tranquility, patience, and emotional healing in modern metaphysical practices; primarily a modern commercial discovery with no ancient historical lore