covellite /kō-velˈīt or kōˈvə-līt/

A blue mineral, cupric sulphide

• rubber cheque
• rubber cheques
• rubber chicken circuit
• rubber chicken circuits
• rubber-cored
• rubbered
• rubber goods
• rubberier
• rubberiest
• rubberiness
• rubbering
• rubberise
• rubberised
• rubberises
• rubberising
• rubberize
• rubberized
• rubberizes
• rubberizing
• rubberneck
• rubbernecked
• rubbernecking
• rubbernecks
• rubber plant
• rubber plants