:"Argillite" may also refer to Argillite, Kentucky.
A section of KY 693 from the Russell/Flatwoods city line to the intersection of KY 207 (Argillite Road) in Flatwoods is also unofficially known as Billy Ray Cyrus Boulevard.
In 1946–1948, the former oil shale processing plant in Sillamäe was rebuilt by Soviets to extract uranium oxide from the locally mined Dictyonema argillite ore (a type of oil shale).