Bronze is derived from the Italian Bronzo, meaning bell metal. Bronze is one of my absolute favorite metals. It machines beautifully and polishes even better. It such an awesome metal it had an entire Age named after it. During the Bronze Age, man started forging alloys of copper looking for ways to improve upon the hardness and edge holding capabilities of the metal, they found through the addition of tin, they could make a much more durable metal that quickly became the defacto tool making material of that Age, only to be replaced with Iron once that smelting process was discovered.
The Bronze alloy we use in our dice is Bronze 392. It’s commonly used for the manufacture of bearings and has a very low coefficient of friction and excellent machinability.
A Bronze d20 weighs in at approximately 510 grains.