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	Ruthenium - The MOST MYSTERIOUS METAL ON EARTH! (Thoisoi2 - Chemical Experiments!) View
	Top 10 Rarest Metals In The World (KenneSaymon) View
	The Strange Cosmic Origin of Earth’s Most Precious Metals (Be Smart) View
	Rhodium - The Most INVISIBLE Metal on Earth! (Thoisoi2 - Chemical Experiments!) View
	Lutetium - THE MOST EXPENSIVE RARE-EARTH METAL. (Thoisoi2 - Chemical Experiments!) View
	Tantalum - This precious rare blue metal you use everyday but never heard of. (KickAss Science) View
	Platinum - The MOST PRECIOUS Metal on EARTH! (Thoisoi2 - Chemical Experiments!) View
	Gadolinium - THE COLDEST METAL ON EARTH! (Thoisoi2 - Chemical Experiments!) View
	(An Engineer's Eye) View
	Hafnium - The Last Stable Metal On Earth! (Thoisoi2 - Chemical Experiments!) View