mineral

Moss Agate and Druzy Quartz Carving

Cryptocrystalline Silica (SiO2) with impurities

Hardness: 6.5-7 (Mohs scale), Color: Green (chlorite inclusions) and white/grey translucent banding, Luster: Vitreous to waxy, Crystal Structure: Hexagonal (cryptocrystalline), Cleavage: None/Conchoidal

Hardness: 6

Identified April 29, 2026More mineral →

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Physical properties

Formation & geological history

Formed in cavities and fissures in volcanic rock through the deposition of silica-rich groundwater. Moss agate forms as mineral filaments (often chlorite or manganese) are trapped within the silica as it solidifies.

Uses & applications

Decorative carvings, jewelry, lapidary arts, and metaphysical collections.

Geological facts

Moss agate is not technically a true 'agate' because it lacks the classic concentric banding; it is a variety of chalcedony with dendritic or moss-like inclusions. This specific piece is carved into a 'goddess torso' shape.

Field identification & locations

Identified by its distinctive moss-like green patterns and translucent white chalcedony base. Often found in Brazil, India, and the United States (Montana). In the field, look for nodules with a waxy exterior.

Other mineral specimens

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Sandstone (with potential mineral staining/concretions)

Arenite (SiO2 based)

sedimentary

Schist

Metamorphic

Epidote

Epidote | Ca2(Al2,Fe3+)(SiO4)(Si2O7)O(OH)

metamorphic

Nephrite Jade

Nephrite

Mineral/Rock

Banded Gneiss (River Rock/Pebble)

Gneiss (specifically a banded variety often found as a river rock)

Metamorphic Rock

Green Apatite on Albite

Fluorapatite [Ca5(PO4)3F] on Albite [Na(AlSi3O8)]

mineral