A fannin ilimin kasa, Slate dutse ne mai ƙaƙƙarfan ƙaƙƙarfan ƙaƙƙarfan ƙaƙƙarfan dutse wanda ya ƙunshi ɗimbin ash ko ash wanda ta hanyar metamorphism aka canza su ta hanyar sinadarai da tsari.Slate yana da ƙayyadaddun layukan katsewa guda biyu - cleavage da hatsi.Wadannan suna ba da damar raba slate zuwa sirara, wanda za'a iya yanke shi a siffata su zuwa faifan rufi, da sauran aikace-aikace masu yawa.
CDPH Slate yana amfani da shekarun gwaninta don tabbatar da cewa ingancin fale-falen fale-falen fale-falen dabi'a sun wuce tsammanin abokan cinikinmu, duka a cikin ainihin halayen samfurin da kuma ƙimar ƙimar da za mu iya bayarwa.
Our Slate za a iya amfani da bango Fale-falen buraka, Fale-falen buraka, Roofing Tiles, Paving Stone, Matakai, Curbs, Kerbstone, Crazy Pavers, Flagstones, Steppers, Matakai, Matakai, shinge da Chips.