mineral

Banded Agate (Botswana Agate)

Silicon Dioxide (SiO2)

Hardness: 6.5-7 on Mohs scale; Color: Swirls of brown, beige, peach, and white; Luster: Vitreous to waxy; Crystal structure: Hexagonal (cryptocrystalline); Cleavage: None/Conchoidal fracture; Specific gravity: 2.58-2.64

Hardness: 6
Color: Swirls of brown, beige, peach, and white
Luster: Vitreous to waxy

Identified May 3, 2026More mineral →

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Physical properties

Formation & geological history

Formed as volcanic rock cavities (vesicles) were filled over time by silica-rich groundwater. Most Botswana agates are nearly 180 million years old, associated with the Karoo lavas.

Uses & applications

Predominantly used for lapidary arts, jewelry making (cabochons and beads), ornamental stones, and metaphysical collecting.

Geological facts

Botswana Agate is known as the 'Sunset Stone' because of its ability to retain sunlight and comfort people during dark, lonely nights. Unlike many agates which are dyed, Botswana agate usually displays its natural colors.

Field identification & locations

Identify by its fine, parallel concentric banding and characteristic peach or pink hues. Often found as nodules or water-rolled stones in river beds throughout the Bobonong area of Botswana.