Black, lustrous, sharp Cassiterite crystals on colorless to white Quartz matrix from the famous Viloco Mine in Bolivia. The Cassiterite crystals are large, very sharp and mirror-like and contrast amazingly with the white Quartz matrix. A very aesthetic piece in excellent condition.

Location: Viloco Mine, Loayza Province, La Paz Department, Bolivia

Size: 8.7 x 2.8 x 4.5 cm