Which country is rich in iridium?

Could you elaborate on which country is particularly known for its abundance of iridium? Iridium is a rare element with unique properties, so its presence in a country's natural resources could be significant. Is there a particular region or continent where iridium deposits are more prevalent? What are the geological factors that contribute to the richness of iridium in this country? Additionally, how does the availability of iridium impact the economy and industries of that country? I'm interested in understanding the global context surrounding the distribution of this valuable element.