bornite /börˈnīt/

A copper ore, sulphide of copper and iron

• frostier
• frostiest
• frostily
• frostiness
• frostinesses
• frosting
• frostings
• frostless
• frostlike
• frost line
• frost lines
• frost-nail
• frost-nailed
• frost-nailing
• frost-nails
• frosts
• frost-smoke
• frostwork
• frostworks
• frosty
• froth
• froth-blower
• froth-blowers
• frothed
• frotheries