... * Stone floor tile have made various with grantie, marble, slate, sandstone, quartz.etc. * Today the mature level in the ... of slates, has evolved in making quality roof shingles, slate board, countertop, long treads, lamistone, columns, and carvings ... of buildings and landscapes, not limited to standard sized tiles. * Rainbowing Slate Color: blue-black Rust yellow green * Specification: thickness ...