Translations:Ore blasting bomb/2/en
From Vintage Story Wiki
Ore blasting bombs are a powerful tool for mining ores, although less than optimal to destroy rocks. They have a 90% chance to drop block contents on ore blocks (as in, Chunk of Quartz from a Quartz-containing stone) and a 25% chance for non-ore blocks (Granite stone from Granite rock). Bombs are more of a mid-game mining tool, requiring at least a tier 2 (copper) pick to mine sulfur ore and at least a tier 3 (bronze) pick to mine black coal . Ores destroyed by a bomb will never drop their crystallized version and large gemstone crystals will drop their constituent materials (Milky Quartz will drop quartz, Amethyst will drop violet quartz). Gems ores will drop gems at the same rate as standard ores.