I'm confused again... the quest for Magical Tin Seeds requires 16 Slate Blocks... except if I use a pickaxe, the Slate breaks to flint, and the same thing happens if I use a shovel (and axe, and mattock). So how do I obtain 16 Slate blocks for the quest? I guess I should run out and try breaking them by hand... nope, still flint. Maybe I can't use my Flint tools and need Iron tool or something? I plan to do the Iron Seed quest first since I need Iron urgently.