Slate is formed when mudrock is buried deep beneath the earth’s surface and exposed to great pressure and temperatures that would make the mercury in your thermometer boil instantly. When you leave slate ‘in the oven’ for a little longer, it becomes phyllite.
Hand split, just like slate, Riverstone natural phyllite has a slightly coarser grain and a unique satin-like luster, making it the choice of the most discriminating architects across the world.
Just as this satin ‘phyllitic sheen’ helps to distinguish phyllite from slate in the field, it will set your roof apart from all the rest.
There are only a handful of phyllite sources known worldwide, and even fewer that are able to split the stone at the thickness required to be suitable for use as a roof covering material.