cuff bracelet .. Etched red brass weaving pattern, Spectacular Sonora Sunrise cabochon

This stone is really a rarity in Nature:  After all, think how difficult it would be to not only find the bright aqua-green of Chrysocolla in the same location as red Cuprite so bright it pulsates, but also to have thick black (probably of Tenorite) there as well....And, then, to have them melded together in such spectacular patterns--Wow!