Anonymous ID: 59af10 Jan. 10, 2018, 7:14 p.m. No.17722   🗄️.is 🔗kun   >>7776

>>17417

Iridium is one of the rarest elements. Less than 3 tonnes produced per year. Platinum is cheaper.

You need to do some research …. you didn't even look at Wikipedia, or you would know this.