Beryl wani ma'adinai ne wanda ya ƙunshi beryllium aluminum cyclosilicate. Wani nau'in ma'adinai ne wanda yawanci ya samo asali a cikin granite, pegmatite, da mica schist. Ma'adinan ya zo da launuka iri-iri, ciki har da blue-kore, ruwan hoda, rawaya, da fari. Ana kuma amfani da kalmar "beryl" don kwatanta dutsen dutse da aka yi daga ma'adinan beryl.