. "327.0"^^ . "Coal. Stratified bedrock. Occurs onshore. Deposited during the Pendleian Substage (Carboniferous Period) (330.3-327 Ma BP)."@en . . "stable"@en . "Coal."@en . "Glass Coal (Midlothian)"@en . . "Glass Coal (Midlothian)"@en . . "GLA"@en . "330.3"^^ . . . .