mineral
Sea Glass
Amorphous silicon dioxide (glass)
AI-generated identification · may be incorrectHardness of 5.5-7 on Mohs scale. Varies in color, often green, blue, brown, or white/clear. Frosted, pitted luster. Amorphous structure. No cleavage.
Identified More mineral →
Explore Sea Glass in the encyclopedia →Identify your own rocks.
Get a report just like this from any photo, free.
Physical properties
Hardness of 5.5-7 on Mohs scale. Varies in color, often green, blue, brown, or white/clear. Frosted, pitted luster. Amorphous structure. No cleavage.
Formation & geological history
Formed by the weathering of manufactured glass (bottles, jars, etc.) tumbling in ocean or freshwater environments over decades.
Uses & applications
Used primarily in jewelry making, crafting, and collected by hobbyists.
Geological facts
True sea glass takes 20 to 50 years, and sometimes up to 100 years, to acquire its characteristic texture and shape.
Field identification & locations
Identified by its frosty appearance and smoothly rounded edges without sharp points. Commonly found on beaches worldwide. Collectors value rare colors like orange, red, and turquoise.
More like this
Other mineral specimens
Gneiss or Schist
Gneiss or Mica Schist with Garnet
Metamorphic
Sandstone (with potential mineral staining/concretions)
Arenite (SiO2 based)
sedimentary
Epidote
Epidote | Ca2(Al2,Fe3+)(SiO4)(Si2O7)O(OH)
metamorphic
Pegmatite with Tourmaline and Quartz
Igneous Pegmatite
igneous
Granite
Granite (Phaneritic intrusive igneous rock)
igneous
Septarian Pebble
Septarian nodule / Concretion
sedimentary