Believe it or not, these are natural Pyrite crystal cubes growing in matrix. Pyrite is part of the cubic crystal system, so it makes sense that it grows in these incredible dice shape. The crystal faces have a high metallic reflection. This piece is a great conversation starter when people ask you if it is real!
Location: Spain. Dimensions: 1.82" x 1.45" x 1.25". Weight: 59.1 grams. Sku: 11F251.