I don't think you can call material sources renewable, well unless we talk wood, leather or whale fat I guess. But in general metals can be recycled quite well

I don't think you can call material sources renewable, well unless we talk wood, leather or whale fat I guess. But in general metals can be recycled quite well and often are recycled due to their price. Also even if you finely shredded it and mixed it with other stuff the resulting mix would still most likely have higher grade than regular ore & mining it would thus be economicaly viable.