Natlandite, the official rock of the city of Los Angeles has an interesting history. When work began for the construction of an office complex called Arco Plaza in downtown LA, geologist Manley Natland was given a curious looking rock. Natland cut the rock and discovered a fossil stone with shells, corals and snails. He further excavated the area and came across a complete bed of fossils. In 1969, the canny geologist had the around 500 tonnes of stone cut. They were polished as statues and tables and sold them for $40,000 each. This rock is now known as Natlandite in his honour.