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
Blank Slate Books Blank Slate Books Blank Slate Books (BSB) is a publishing company based in the UK. It publishes primarily comic books, graphic novels and comic strip collections, with an emphasis on new work by British artists and translated work by European artists. The books it publishes are noted for their “indie-friendly” content, and are frequently by small press artists whose initial work is self-published. The name of the company is a pun on "drawing" or “writing” on a blackboard. BSB is currently one of the few dedicated original comics and graphic novel publishers in the UK. Blank Slate Books (BSB) was