A lovely miniature of the rare Copper Aluminium Arsenate mineral Liroconite from the Ting Tang Mine, Cornwall. The Liroconite displays well formed bladed monoclinic crystals to 0.3cm on edge. The crystals line a shallow cavity in the matrix, and have a light to dark turquoise colouration with lustrous crystal faces. The Liroconite nicely contrasts against the pale yellowish matrix.