This is a rare estate piece signed by Brazilian artist who made Brutalist items in 60’s-70’s. His studio was in Rio. Collector piece, 2 large stone, amethyst and unknown clear stone, brass. Slightly bendable. 3” tall, 7.5 around, with 1” space. One edge has bend. 7.5 oz weight. For the right outfit and person it is smashing! Or collector True to Brutalist style. Cost on another site for artist’s work is $3-500. Ask any questions before purchase.