This magnesite and uvite crystal mix is from the Pomba Pit in Serra das Egus, Brumado, Bahia, Brazil. This mine is a commercial producer of magnesite and talc however uvite and other accessory minerals, including emeralds are found there. The mine owners enforce a ban on mineral collecting that includes the miners that work there. This piece consists of a crystalline magnesite matrix that is topped with rhombic magnesites and green uvite tourmalines. This piece measures approximately 2 5/8 x 2 1/8 x 1 1/4 inches or 66 x 54 x 32 mm.