Most banded agates get their color from violent, mineral-rich volcanic activity, which is why so many run in bold reds and fiery oranges.
Botswana agate formed differently, roughly 187 million years ago, as part of the vast Karoo volcanic system that spread across southern Africa, but under unusually stable, chemically reduced conditions.
That stability is exactly why this material comes out in soft, muted tones, pale pink, grey, lavender, and white, rather than the vivid colors typical of American or Brazilian agate.
Genuine material traces back to a specific region, the Bobonong district and the Serule-Mmadinare belt in eastern Botswana, where fine parallel banding runs consistently through the entire stone rather than sitting only on the surface.
That's actually a useful authenticity check, if a piece shows uneven or patchy color that looks concentrated near the surface rather than running through the whole nodule, it's worth questioning whether the coloring is natural or enhanced.
Each cabochon here is cut mix shape with a flat back, sourced from Botswana, and priced in small piece counts.
The banding itself varies from tight, fine parallel lines to broader, wavier patterns depending on where in the original nodule each piece was cut, no two cabochons carry the same rhythm of bands.