BRAZIL BLACK GRANITEBrazil Black Granite is a medium grained, dark grey to black diorite. This stone may well be nominated as granite on a global scale, but it needs to be nominated as a diorite in the European Standard's application region. A tiny sample of Brazilian Black granite is generally representative, with little variance in colour and veining; nevertheless, for major projects, swatch samples must be certified to confirm that the blocks are all pulled from the