Platinum
Platinum exists in higher abundances on the Moon and in meteorites. Correspondingly, platinum is found in slightly higher abundances at sites of bolide impact on Earth that are associated with resulting post-impact volcanism, and can be mined economically; the Sudbury Basin is one such example.
Kalatongke mine
The Kalatongke mine is a large open pit mine located in the northern part of China in Inner Mongolia. Kalatongke represents one of the largest platinum reserves in China having estimated reserves of 55.7 million oz of platinum. The mine produces around 64,000 oz of platinum/year.