A bright green mineral, a basic copper carbonate, Cu₂CO₃(OH)₂; one of the principal ores of copper.
A mild green colour, like that of the mineral.
Of a colour ranging from olive-taupe to a mild to deeply-rich (at times seemingly translucent) green, like that of the mineral which is present on oxidized copper.
Calcium oxide, which is produced by heating (calcining) limestone and gives slaked lime on treatment with water.
To treat with quicklime.