Last month, comic book fans flocked to cinemas as Black Panther hit the screens. Underpinning the film’s plot was fictional metal vibranium, which powered the titular hero’s kingdom of Wakanda. Interestingly, this metal was, in part, inspired by tantalum. So, what of the marvellous metal’s real-life counterpart? Here, Heiko Wildner, refractory metals specialist for materials comparison site Matmatch, examines the value and considerations of using tantalum.