This mod will add to your game a lot of new ores, blocks and objects, and most importantly, chemical reactions, with which you can get new materials, create new chemical compounds, including explosives. In 1.0.2 version:
5 new ores: tin, cooper, bismuthum, lithium and beryllium ores.
Tin and cooper ingots. You can use it to make a bronze ingot. Bronze ingots need to craft instruments.
Bismuthum crystall, beryllium and polonium ingots.
'Nuclear' explosive, made from trotyl and nitroglycerine. It compress pu239 core of atomic bomb.
Atomic bomb core. Craft from 'nuclear' exp., plutonium239 and 'urchin' - beryllium-polonium ball.
And atomic bomb, yes! Craft from AB-core, iron blocks and neutron reflectors.
Tritium tube. Now it's useless(