Chinese Blue Limestone 1. Material:Blue Limestone 2. Size:30x30 cm; customerized 3. Finishing:polish, honed, tumbled Chinese Blue Limestone Blue limestone is a very popular limestone. It orginates in Shandong, China. It is used in various areas. Besides tiles and slabs, it also can be made into mailbox, curdle, window cills, sculptures, benches, desks.... Blue Limestone products are very popular ...