"Brick pavers are made of clay (natural brick) or are manufactured from concrete and aggregate and dyed to look like brick. Genuine brick, made from clay and shale, is dried and fired at extremely high temperatures, making it very strong. True brick also features rich, lasting color that will not fade. Like brick pavers, concrete pavers that are manufactured to look like brick are available in different styles. However, there are fewer color choices and the colors can fade. A sealant can help prevent fading. Bricks are somewhat more versatile than concrete because you can lay them side-by-side, end-to-end or even in a diagonal pattern."--Homedepot.com