What is the worlds scarcest material? Idium? Rhodium? Read the story @ http://www.bbc.com/future/story/20140314-the-worlds-scarcest-material Wonder if they're listed on the commodities market?
gold still king in china and india and there the biggest buyers of it globally so i would stay with it. it looks like bump up in the price soon http://www.forbes.com/sites/kitcone...s-data-ukraine-will-keep-gold-market-on-edge/