Slate of finished and unfinished slate has increased. It has slate in various colors. Deposits of slate exist throughout the Australian continent, with large reserves quarried in the Adelaide Hills (Willunga and Kanmantoo) and the Mid North (Mintaro and Spalding). Because slate was formed in low heat and pressure, compared to a number of other metamorphic rocks, some fossils can be found in slate; sometimes even microscopic remains of delicate organisms can be found in slate. Slate Slate is a fine-grained, foliated, homogeneous metamorphic rock derived from an original shale-type sedimentary rock composed of clay or volcanic ash through low-grade regional
Blank Slate Books the company and now supervises BSB’s design and production. 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