On a matrix of hyaline quartz crystals, with a long prism, disposed as an intricate structure and random growth, a hübenrite crystal showing well defined faces. With an intense metallic luster and black color and red transparence visible under an intense light. The snowy white matrix makes strongly contrast the hübnerite crystal. THE MAIN CRYSTAL IS: 1,7 x 1,4 x 0,2 cm.