mineral

Agate (specifically Botswana or Banded Agate variety)

Chalcedony (Silicon Dioxide, SiO2)

AI-generated identification · may be incorrect

Hardness: 6.5–7 on Mohs scale; Color: Pink, grey, apricot, or brownish with fine white banding; Luster: Vitreous to waxy; Crystal structure: Trigonal/Microcrystalline; Cleavage: None (conchoidal fracture); Specific gravity: 2.58–2.64

Hardness: 6
Color: Pink, grey, apricot, or brownish with fine white banding
Luster: Vitreous to waxy

Identified March 30, 2026More mineral →

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Physical properties

Formation & geological history

Formed through the deposition of silica-rich groundwater within gas cavities (vesicles) of volcanic rocks (basalt). These specific specimens are often found in volcanic rock formations dating back approximately 180 million years.

Uses & applications

Primarily used in jewelry (cabochons, beads), decorative carvings, and as a popular specimen for collectors and healers for its grounding properties.

Geological facts

Botswana Agate is known as 'The Sunset Stone' because it retains sunlight and comforts through dark, lonely nights. Unlike many dyed agates, the subtle pastel colors of this variety are generally natural.

Field identification & locations

Identify in the field by looking for the signature 'eye' patterns and parallel, fine-line banding. It is most famously found in the Bobonong district of Botswana, but similar agates occur in river beds and volcanic areas worldwide. Best found after heavy rain when the water washes away surface dust.