Ore belongs to one of three categories: Metal ore, gemstone ore, and Serpentium crystals.
For metal ore, the GM must roll '''1d8001d200*5''' for each ore bundle. For every 5 grams, an ore bundle's Weight gains '''0.01 Weight unit'''. The smallest possible size is '''5 grams (Weight 0.01)''', and the largest possible size is '''4000 1000 grams''' or '''4 1 kilograms (Weight 82)'''.
For gemstone ore, the GM must instead roll '''1d801d10*50''' per ore bundle. As with metal ore, for every 5 grams, an ore bundle's Weight gains '''0.01 Weight unit'''; however, for every 50 grams, an ore bundle will carry '''one gemstone'''. As such, the smallest possible size is '''50 grams (1 gemstone)''', and the largest possible size is '''4000 500 grams (80 10 gemstones)'''
Serpentium crystals come in fixed sizes ranging from 100 grams to 4000 grams; therefore, there is no need to generate size and Weight.