covellite /kō-velˈīt or kōˈvə-līt/

A blue mineral, cupric sulphide

• ostent
• ostentation
• ostentations
• ostentatious
• ostentatiously
• ostentatiousness
• ostents
• osteo-
• osteoarthritic
• osteoarthritis
• osteoarthroses
• osteoarthrosis
• osteoblast
• osteoblastic
• osteoblasts
• osteochondritis
• osteochondroses
• osteochondrosis
• osteoclases
• osteoclasis
• osteoclast
• osteoclastic
• osteoclasts
• osteocolla
• osteocollas