Slate is a fine-grained, metamorphic rock composed mainly of quartz, muscovite, and feldspar, formed under low-grade metamorphic conditions. Its natural foliation, caused by the alignment of minerals, allows it to split into thin, durable sheets with precision. This makes slate an ideal material for roofing, flooring, and crafting chalkboards, combining functionality with a timeless aesthetic. #slaterock #naturalstone #metamorphicrock #buildingmaterials #roofingtiles #geologyfacts #sustainablede

Oregon’s “duckbill” rock formation stood for 18 million years. Then these guys were caught on video knocking it down. | Slate.com