Dynamite

Dynamite is the strongest of all bombs, destroying a great area when thrown. Dynamite can destroy any block, inluding ebonstone (making it very usefull to get to a shadow orb in a chasm)(Does not include Hellstone.)) When a piece of dynamite is found by a player, and adequate housing is provided, a demolitionist will be able to move in.

Mining metorites
Dynamites work exceptionally well for mining metorites. 1-3 dynamites strategially placed will mine 80-90%, if not all, of the metorite and instantly stop more Meteor heads from spawning allowing you to safely mine the remaining ore with your pickaxe.