Mineral/Gemstone
Moss Agate
SiO2 with impurities (Chalcedony)
AI-generated identification · may be incorrectHardness 6.5-7, Colorless or white with green, brown, or red dendritic inclusions, Vitreous luster, Microcrystalline structure, No cleavage, Specific gravity 2.58-2.64
Identified More mineral/gemstone →
Explore Moss Agate in the encyclopedia →Identify your own rocks.
Get a report just like this from any photo, free.
Physical properties
Hardness 6.5-7, Colorless or white with green, brown, or red dendritic inclusions, Vitreous luster, Microcrystalline structure, No cleavage, Specific gravity 2.58-2.64
Formation & geological history
Forms from silicon dioxide deposited from groundwater in the cavities of igneous rocks. The dendritic patterns are formed by oxides of iron or manganese.
Uses & applications
Used primarily in jewelry as a cabochon, and in ornamental carvings.
Geological facts
Moss agate is not a true form of agate, as it lacks concentric banding.
Field identification & locations
Identified by its distinctive moss-like or tree-like inclusions in a translucent to semi-translucent base. Common locations include India, Brazil, Uruguay, and the USA.
More like this
Other mineral/gemstone specimens
Pegmatite with Tourmaline and Quartz
Igneous Pegmatite
igneous
Pegmatite
Igneous Pegmatite
igneous
Mixed gemstone jewelry collection
Likely amethyst, rose quartz or pink tourmaline, smoky quartz, and dark tourmaline/onyx; exact identifications are uncertain from the image
gemstone
Pearl
Calcium Carbonate (primarily Aragonite and Calcite), CaCO3
mineral
Amber
Fossilized tree resin
gemstone
Pegmatite
Pegmatite (felsic intrusive igneous rock)
igneous