Tide of Black Diamonds 2001 Lilian Roosenboom  Callaghan Square, Cardiff. In consultation with MEPC and Nicholas Hare Architects, CBAT agreed a commission to be integrated in the colonnade along the front of the building. The brief to artists requested a treatment of, or sculptural intervention within the space, which would enhance the experience of the occupiers and visitors to the building, as well as passing foot traffic.The art works created a number of important benefits, including the Encouragement of the growth of existing business and the establishment of new business initiatives. Dutch artist, Lilian Roosenboom was appointed to develop the commission and proposed a dark floorscape to include anthracite donated by Tower Colliery, cast in lit circular glass elements and a network of bright lines in stainless steel, with a reflective lighting scheme evoking water ripples.Lilian drew inspiration from the history of the adjacent docklands area and its use as a port for the transportation of coal and combined this with the notion of global transportation in the form of fibre optic networks to transfer data to businesses and clients around the world. Fibre optics and light emitting diode units were set inside the ‘Black Diamonds,’ evoking the nearby harbour and movement of its water.