Limestone tile, grey limestone 1. color: red, grey, black , yellow, brown ... floor, wall Xiamen Stone Consulting is specialized in fabricating calibrated limestone tile, we can provide black, grey, white, red, beige, ... gold, blue etc in Chinese and international limestone colors.Size: 12x12, 16x16, 18x18, 24x24 (300x300, 400x400 ... send your unique design and requirement. Grey Limestone tile