gemstone
Moss Agate
Silicon Dioxide (SiO2) with dendritic inclusions of hornblende or chlorite
AI-generated identification · may be incorrectHardness of 6.5 to 7 on the Mohs scale, vitreous to waxy luster, trigonal crystal system, and opaque to translucent transparency with green moss-like inclusions.
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Physical properties
Hardness of 6.5 to 7 on the Mohs scale, vitreous to waxy luster, trigonal crystal system, and opaque to translucent transparency with green moss-like inclusions.
Formation & geological history
Formed from weathering of volcanic or metamorphic rocks where silica-rich groundwater deposits quartz in cavities.
Uses & applications
Widely used for ornamental carvings, polished towers, cabochons, and metaphysical crystal healing practices.
Geological facts
Despite its name, moss agate contains no organic matter and is not a true agate since it lacks concentric banding.
Field identification & locations
Identified by its clear or milky chalcedony base containing distinct green dendritic patterns resembling foliage; commonly sourced from India, Brazil, and the USA.
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