Silver Gray Slate is a kind of silver blue-grey slate extracted in Norway. This stone is especially good for Building stone, roof tiles, countertops, sinks, monuments, pool coping, sills, ornamental stone, roofing tiles and other design projects. It also called Silver Grey Norway Slate,Krabben Skiffer,Krabben Schiefer,Krabben-Schiefer,Krabben-Skiffer,Nord-Lys,Friarfjord Slate,Schiefer Laksefjorden,Finnmark-Schiefer,Finnmark-Skiffer,Silver Grey Slate,in China stone market:银啡麻(Yín fēi má) . Silver Gray Slate can be processed into Honed, Aged, Polished, Sawn Cut, Sanded, Rockfaced, Sandblasted, Bushhammered, Tumbled and so on.