Slate

It is a metamorphic rock composed of clay or volcanic ash, which has a minimum absorption coefficient which provides it with the optimal degree of water resistance for use on roofs and covers, also used in coatings of both façades and flooring.

Quartzite

It is a metamorphic rock of sedimentary origin, with high hardness and high quartz content. It is formed by recrystallization at high temperatures and pressure. It doesn’t experiment foliation.

Granilouro works with a multitude of different kinds of slate and quartzite from around the world, covering a wide range of colour and veining. These are the slates and quartzites of greater demand, the following images link to the technical characteristics of each material:

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For these or any other information you wish to, we are at your disposal.