This stacked appearance is reminiscent of Asian "pagodas." The muted metallic luster, and sculptural quality really make for an aesthetic specimen. Sharp! 3-dimensional and better in person!!! Stacked, dark gray octahedrons, comprise this specimen of acanthite. Crystals to .7 cm across, muted luster and interesting sculptural quality really enhance the overall specimen. It is one of the most complexly crystallized in the lot