Slate industry in Spain Slate industry in Spain 90% of Europes's natural slate used for roofing originates from the slate industry in Spain, with the region of Galicia being the primary source of production. Slate is a fine-grained metamorphic rock that splits into thin, smooth-surfaced layers. Metamorphic rock is rock which was once igneous or sedimentary and has been subsequently subjected to heat and pressure in varying degrees thereby altering its composition, structure and appearance. It is used extensively in the building industry, particularly for roofing tiles. The production of slate is estimated at 4 million tons per year. Galicia is situated on the
This Is What Rock n' Roll Looks Like instead, the classroom setting was criticized while the presence of Lil Wayne was appreciated. The song was also used in the 2013 film, "The Smurfs 2". This Is What Rock n' Roll Looks Like "This Is What Rock n' Roll Looks Like" is the debut single of American industrial singer-songwriter Porcelain Black, featuring American rapper Lil Wayne. This song serves as the lead single from the singer's debut studio album, "Mannequin Factory". Produced by Moroccan-Swedish producer RedOne, who had originally discovered Black, "This Is What Rock n' Roll Looks Like" is influenced by the genre of rock, lyrically stating how