mineral

Green Moss Agate

Agate (Silicon Dioxide - SiO2 with inclusions of Manganese/Iron oxides)

Hardness: 6.5-7 on Mohs scale; Color: Clear to milky white with green moss-like inclusions; Luster: Vitreous to waxy; Crystal structure: Trigonal/Microcrystalline; Cleavage: None/Conchoidal fracture; Specific Gravity: 2.58–2.64

Hardness: 6
Color: Clear to milky white with green moss-like inclusions
Luster: Vitreous to waxy

Identified April 4, 2026More mineral →

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Physical properties

Formation & geological history

Formed from the deposition of silica from groundwater in the cavities of igneous rocks. The 'moss' patterns are caused by dendritic inclusions of minerals like manganese or iron oxides during formation.

Uses & applications

Commonly used in jewelry (cabochons, beads), decorative carvings, and as a popular collector's stone for its unique botanical appearance.

Geological facts

Despite its name, it does not contain organic plant matter. Ancient civilizations viewed moss agate as a powerful healing stone and a mascot for gardeners to ensure a good harvest.

Field identification & locations

Identify in the field by checking for the characteristic dendritic (branch-like) inclusions inside a translucent chalcedony host. Found globally with major deposits in India, Brazil, and the USA.

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