These beautiful purple crystals are complemented by contrasting blues and green Agate. Agate is a variety of Silica known as "chalcedony", easily known and recognized by its banding. It has historically been a popular material for carving and was used by many different ancient civilizations.
Though the banding can seem so perfectly made, as if being man made,it is not. It is completely naturally made. Inside the cavity of this nodule is a layer of many small purple Amethyst crystals. The amethyst is beautifully, naturally made, and shimmers radiantly in the light.
Measurements are approximately: 4 inches in height & 4.25 inches in width.