Really interesting concept! I had a bit of trouble working out how to use the ores. E.g. I picked a bunch of shrapnel ore (five I think) but it didn't seem to do anything at all.
Yes very dumb of me not to show bomb stats but the powders go by increments of 10, so 10 shrapnel ore will blast out 1 piece of shrapnel etc x) and by that logic 5 would be nothing :( . I'm glad u like the concept :p