SlateSlate is a wonderful-grained clayey metamorphic rock that cleaves, or splits, conveniently into slim slabs acquiring good tensile energy and sturdiness. More than an incredible number of a long time the sediment builds up, hardens, and gets good rock. Sandstone is really a sedimentary rock that varieties in this way. https://rock-sticks13345.glifeblog.com/35113734/little-known-facts-about-sticks-of-rock