BRAZILIAN BLACK CALIBRATED SLATE TILES HEXAGONBrazilian Black Slate Tiles are world renowned slate tiles due to their hardness and extremely light riven surface or natural cleft with very minimal variation. Hexagon tiles make a space look unique and stylish. The Brazilian Black Slate Tiles have a surface that is faintly riven and come in tones varying from pitch black to lighter shade. They are incredibly hard wearing and robust. With its striking black surface and lightly veined patterns, the