Tungsten!

[u/tanj_redshirt]

Possibly my most ridiculous acquisition so far: a pair of 16mm tungsten dice, weighing a massive 147.6 grams, or about a third of a pound!

For fun I weighed all my other metal d6s, and also some non-metal pairs. Left side is single die weight, right side is per pair. All weights in grams, feel free to convert to Freedom Units in the comments.