Sea Glass (Green)
Anthropogenic Silicate Glass · Decorative / Collector Object
Crystal System
Amorphous (Non-crystalline)
Mineral Group
Man-made Glass / Vitreous Material
Chemical Formula
SiO2 (amorphous silica with various metal oxide colorants)
Formation Process
Artificial melting of raw materials (silica, soda ash, limestone) followed by discarding, subsequent wave action, sand abrasion, and prolonged tumbling in water.
About This Crystal
A small, tumbled fragment of vibrant green glass featuring frosted, matte surface texture with smoothed edges, characteristic of long-term exposure to wave action.
Physical Characteristics
Vibrant emerald green body color, white streak (or none due to hardness), no cleavage, conchoidal fracture, specific gravity around 2.4-2.8, brittle tenacity, isotropic, highly translucent to transparent.
Optical Properties
Singly refractive (isotropic), refractive index approximately 1.50-1.52, no pleochroism or birefringence.
Hardness & Durability
Origin Region
Found globally along coastlines, beaches, and lake shores where discarded glass is tumbled by waves and sand.
Hardness & Durability
Mohs hardness of 5.5, moderate toughness, stable under normal environmental conditions, suitable for wire-wrapped or bezel-set jewelry.
Care & Maintenance
Clean with warm soapy water and a soft brush; avoid harsh acids or abrasive materials that could scratch the surface.
Rarity & Value
Common, though specific deep colors, rare shapes, or old-age provenance pieces can command higher collector interest; generally very low monetary value.
Special Characteristics
Frosted, pitted surface texture caused by natural chemical weathering and mechanical abrasion from sand grains over decades.
Lore & History
Often associated in modern metaphysical practices with renewal, healing, transformation, and the cleansing power of the ocean, representing discarded things given new beauty.