Yes, Bitcoin has rallied, but this ultra-rare metal is much ahead Updated : March 27, 2021 09:56 AM IST Iridium, used especially in the electronics and chemical industries, has surged a staggering 131 percent since the start of January 2021 Its value has tripled over the last four months and the primary reason for it is a limited supply Published : March 27, 2021 09:54 AM IST