Greysonia sp. – Large, museum-sized stromatolite colony, cut and polished, with natural structure on back side of specimen. Specimen measures 16″ wide at base, 14″ at tallest point, and 4″ thick at base. The large cut and polished area reveals intricate details of both vertical and horizontal views of this massive colony. Great combinations of pink, tan, dark gold, and greenish gray color. Base is cut flat for upright, free-standing position. Spectacular display specimen!