I've just opened the mine & realised that tho I've been selling explosives & shovels since I started the game I have no understanding of how they work -eg why does the shovel cause an explosion? Or maybe it didn't (in my rush to play with the mine I used all the dynamite, shovels & the other one in quick succession) but then was dissappointed because still not enough to make any bars from :-( Love love love the explosions! Will someone teach me how to work the mine please?

