Seldom do you see Bisbee combination specimens with this striking, sculptural quality and rarity. The matrix is a folded sheet of solid copper. Pretty green primary malachite microcrystals richly cover all sides of the copper matrix, including the striking, free-standing copper spinel-twins. The large spinel is 2.2 cm. And a fine bonus are the "nests" of tiny calcite crystals, that look like eggs. This is a fabulous, old-time Bisbee combination specimen from the Dennis Mullane Bisbee Collection.