RE: Rhodium15 Sep 2020 08:26
Spooky, was watching a QI re run from June this year last night, a question came up on expensive metals:
General Ignorance
- The world's most expensive metal is rhodium. At the time of recording, gold costs about $50,000 a kilo, platinum is about $27,000 a kilo, and rhodium is $350,000 per kilo. Rhodium is both rare and useful, hence the value. 80% of rhodium is used in catalytic converters. The amount of rhodium used in a car weighs about the same as one quarter of a postage stamp, but still adds £70 to the price of the car. Rhodium is also used as a plate for white gold and in heart pacemakers.