Geologically, Slate yog pob zeb zoo-grained metamorphic muaj li ntawm sedimentary los yog volcanic tshauv deposits uas los ntawm metamorphism tau raug tshuaj thiab structurally hloov.Slate muaj ob txoj kab ntawm kev tawg - cleavage thiab grain.Cov no ua rau nws tuaj yeem faib cov slate rau hauv cov ntawv nyias, uas tuaj yeem txiav thiab zoo li lub ru tsev slates, nrog rau ntau yam kev siv.
CDPH Slate siv peb cov kev paub ntau xyoo los xyuas kom meej tias qhov zoo ntawm cov vuas pob zeb zoo tshaj qhov kev cia siab ntawm peb cov neeg siv khoom, ob qho tib si hauv cov yam ntxwv ntawm cov khoom thiab hauv kev sib tw ntawm cov nqi uas peb tuaj yeem muab tau.
Peb cov slate tuaj yeem siv rau phab ntsa vuas, Pem teb vuas, vov tsev vuas, Paving pob zeb, Stairs, Curbs, Kerbstone, Crazy Pavers, Flagstones, Steppers, Stepping Pob zeb, Cov kauj ruam, laj kab thiab Chips.