This mod is almost impossible (but a little bit possible) with no help (others mods or players). After about 1 hour of intensive mining with the dark pickaxe, I recovered 168 diamonds, 6 red ores, 4 yellow ores3 blue ores, 4 purple ores, 2 green ores and a lot of frames (they do not all entered my inventory). To do 1 dark ingot, you need 36 ores of all colors (red, yellow, green, blue and purple), 5 frames and a lot of determination! If you found bugs or have any ideas, tell me in comms! Little recommendation: Play this mod with NEI because there are a lot of crafts.