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.
Bushveld Igneous Complex
Platinum is more likely to be affected by social, environmental, political and economic issues where as gold not as much. This is because platinum has large mineral resources already identified and is not expected to be depleted for many decades (potentially up to year 2040). Furthermore, the resource is geographically restricted with the 3 by far most significant resources BIC, The great dyke (Zimbabwe) and Noril'sk-Talnakh in Russia. An important detail to note is palladium has been and is considered as the alternative to platinum. Recently (2017), the supply-demand gap has greatly decreased. Looking at political and social issues, there have been quite a few platinum mining-related strikes since before the 21st century: 1986 Impala strike, 1986 Gencor, 2004 Impala & Anglo Plats strikes, 2007 South Africa miners' strike, 2012 Marikana killings, Lonmin 2013 strike, 2014 South African platinum strike.