Iron

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To see iron metal in your dream symbolizes harshness, anger, aggression, ruthlessness, and conflict. On a positive note, it may signify strength, endurance, and willpower. 
To see red, hot iron in your dream represents action. Perhaps the dream is telling you to "strike while the iron is hot". You need to take advantage of certain opportunities while it is still available. 
To see old, rusty iron in your dream signifies poverty and disappointment.