(multiple estimates since they don't exactly line up squarely) ... [PDF] http://minerals.usgs.gov/minerals/pubs/commodity/platinum/myb1-2014-plati.pdf http://

(multiple estimates since they don't exactly line up squarely) ... [PDF] http://minerals.usgs.gov/minerals/pubs/commodity/platinum/myb1-2014-plati.pdf http://minerals.usgs.gov/minerals/pubs/commodity/platinum/my... On page 4, it says 2014 global consumption of Ir was 6100kg. (3rd last para). ... https://en.wikipedia.org/wiki/Iridium https://en.wikipedia.org/wiki/Iridium Wikipedia article para 2 says global consumption and production is three tonnes. ... http://www.bloomberg.com/news/articles/2014-02-19/iridium-climbs-to-3-month-high-amid-buying-after-annual-slump http://www.bloomberg.com/news/articles/2014-02-19/iridium-cl... This (2014) article estimates global production as 129,000 ounces to 322,000 ounces, which is about 3500 kg to 9000 kg.