Roofing slate is one of the world's most popular dimension rock products. This special type
of slate can be split into regular and thin tiles forming an exceptional covering material …

Roofing slate has its own regulations and standards, as with other natural stones. The two
main markets for roofing slate are USA/Canada and Europe. Given the very long tradition of …

Abstract The Heritage Stone Subcommission (HSS), under the aegis of the International
Union of Geological Sciences (IUGS), accords “Global Heritage Stone Resource” status to …

Roofing slate from the town of Bernardos can be found in most buildings erected by the
Spanish monarchy from the 16 th to 19 th centuries, making it a highly important component …

This article analyzes the geochemical and mineralogical composition of the roofing slate
deposits of the Iberian Peninsula. Most roofing slate deposits are found on Middle and …

Manufacturers reported a loss in fissility in blocks of roofing slates because of air exposure
prior to splitting. Samples of three varieties of commercial Spanish roofing slate were …

Slate has been used for centuries as a building material, and many historical buildings and
monuments use slate in roofs and structures. When slate roofs must be totally or partially …

Roof and wall slates are fine-grained rocks with slaty cleavage, and it is often difficult to
determine their mineral composition. A new norm mineral calculation called slatecalculation …

Gondwana developed marine platforms at its northern edge with Paleozoic deposits
reflecting varied paleoclimatic conditions. In the northwestern (NW) Iberian Peninsula (NW …

Size distribution and evolution of framboidal and euhedral microscopic crystals of pyrite
(micropyrites, MPy) have been used for the last thirty years to deduce palaeo-redox …