Paving Slate in Interior Use

Paving slabs in interior use
Slate was formed from weathered ancient rock, processed by erosive primeval rivers, deposited at great depths of water, and compressed under exceptionally high water pressure and even higher rock pressures. All this gave it its unique structure, its so-called foliation.
Deep underground in the Rhineland Slate Range, we mine raw slate, and haul it to the surface via horizontal galleries and vertical shafts. Careful selection and separation of the poor from the usable material is necessary even underground; the good slate is then firstly mechanically sawn in our cleaving mills on the surface, then split into thin sheets, and dressed in jigs for the various applications. We also import high-quality roofing, wall slate and natural stone slate from Spain, and coloured slates of exceptionally high quality from other European mines.