mineral

Banded Agate (Tumbled Pebble)

Silicon Dioxide (SiO2)

AI-generated identification · may be incorrect

Hardness: 6.5-7 Mohs. Luster: Waxy to vitreous. Color: Creamy white, beige, light brown, with purple-brown banding. Crystal System: Microcrystalline (trigonal). Cleavage: None, exhibits conchoidal fracture.

Hardness: 6
Color: Creamy white, beige, light brown, with purple-brown banding
Luster: Waxy to vitreous

Identified July 24, 2026More mineral →

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Physical properties

Formation & geological history

Formed through the deposition of microcrystalline silica in volcanic rock cavities or sedimentary environments, creating distinct concentric or parallel color bands.

Uses & applications

Used in lapidary arts, jewelry, craft projects, energy/crystal healing collections, and as decorative polished stones.

Geological facts

Agate is named after the Achates River (now called the Dirillo River) in Sicily, where it was first discovered in ancient times.

Field identification & locations

Identified by its waxy luster, hardness (scratches glass), smooth tumbled texture, and characteristic color banding. Found globally in volcanic regions, riverbeds, and gravel deposits.