gemstone
Green Sea Glass
Man-made vitreous material (silica glass)
Hardness: 5.5 to 7 on Mohs scale; Color: Light green; Luster: Vitreous to dull; Crystal structure: Amorphous (non-crystalline); Fracture: Conchoidal; Specific Gravity: 2.4 to 2.8
- Hardness
- 5
- Color
- Light green
- Luster
- Vitreous to dull
Identified More gemstone →
Explore Green Sea Glass in the encyclopedia →Identify your own rocks.
Get a report just like this from any photo, free.
Physical properties
Hardness: 5.5 to 7 on Mohs scale; Color: Light green; Luster: Vitreous to dull; Crystal structure: Amorphous (non-crystalline); Fracture: Conchoidal; Specific Gravity: 2.4 to 2.8
Formation & geological history
Formed through the anthropogenic creation of glass items (bottles, jars) which were discarded into bodies of water, then weathered, tumbled, and smoothed by wave action, sand, and water over many decades.
Uses & applications
Collected by hobbyists for crafting, jewelry making, home decor, and beachcombing displays.
Geological facts
Sea glass is essentially manufactured glass that has undergone natural tumbling in the ocean. The frosty appearance is caused by the weathering process, where water and sand leach soda and lime out of the glass, creating microscopic pits on the surface.
Field identification & locations
Found worldwide along the shores of oceans, seas, and large lakes, particularly near historical dumping sites or populated coastal areas. Identified by its frosted appearance and rounded, smooth edges lacking sharp corners.
More like this
Other gemstone specimens
Diamond and Gold Jewelry
Carbon (Diamond) / Au (Gold)
gemstone
Ammolite
Ammolite (Biogenic Aragonite with trace elements; fossils of Placenticeras meeki and Placenticeras intercalare)
mineral
Cubic Zirconia (simulant) or Diamond
ZrO2 (Cubic Zirconia) or C (Diamond)
gemstone
Black Opal Ring (Carved Opal)
Hydrated Silicon Dioxide (SiO2·nH2O)
gemstone
Red Jasper
Silicon Dioxide (SiO2) with Hematite inclusions
sedimentary
Cubic Zirconia (or possibly Diamond)
Zirconium dioxide (or Carbon)
gemstone