I have a modification that adds a furnace that doubles the amount of ingots produced from an ore when smelted. I want to know if using this furnace to smelt diamond ore would be better than using a fortune 3 diamond pickaxe. So what is the likelihood of getting three (or more maybe) diamonds from an ore with a fortune 3 pickaxe so I can determine if the furnace is better to use because it gives a guaranteed two diamonds. Thanks!
From the minecraft wiki:
Fortune increases block drops. For coal, diamond, emerald, nether quartz, and lapis lazuli, level I gives a 33% chance to multiply drops by 2 (averaging 33% increase), level II gives a chance to multiply drops by 2 or 3 (25% chance each, averaging 75% increase), and level III gives a chance to multiply drops by 2, 3, or 4 (20% chance each, averaging 120% increase).
Sounds like the fortune pickaxe is the way to go.