Sieber Agate 10mm Round AA Grade - 15-16 Inch 48hr_01202026 The blue colors are photosensitive

The blue colors are photosensitive and may fade when exposed to excessive light or heat

By soaking the stone in a non-toxic chemical solution

It is a white granite with dark gray mottling that also exhibits blue or green spots

” which means that it can appear to be different colors as it shifts in the light

) Seraphinite is most commonly found in shades of dark green and gray

Sieber Agate 10mm Round AA Grade - 15-16 Inch 48hr_01202026 The blue colors are photosensitiveSieber agate is not a true agate but rather a glassy, dark blue grey or green copper slag that formed during ancient copper smelting in Germany, specifically from the Siebertal area. This historical "ancient slag" has a naturally swirling, intricate appearance resembling agate due to silica and mineral inclusions from the smelting process. It is a rare and collectible material known for its lapidary qualities, similar to obsidian, and is sometimes