This piece features a dense coating of black, lustrous, sharp Cassiterite crystals on a rust-colored matrix from the famous Viloco Mine in Bolivia. The Cassiterite crystals are large, very sharp and mirror-like and contrast amazingly with the matrix. A very aesthetic piece with great color, luster, contrast and crystal formation. In excellent condition.

Location: Viloco mine, LaPaz Department, Bolivia

Size: 5 x 4 x 3.5 cm