Dynamite was an explosive material commonly used in mining.
George Wallace kept dynamite in a shed. It was used in the building of a cave on a hillside. The Eighth Doctor and John Hopkinson collected some sticks of this dynamite and Baker put them in Richard Harries' pockets. John Hopkinson ignited them with a lamp causing Harries to explode. (PROSE: The Banquo Legacy)
The Second Doctor and Jamie once had to use dynamite to blast their way through the Antarctic ice to find a group of aliens threatening to take over the world. (COMIC: Ice Cap Terror)
The Eleventh Doctor, Amy Pond and Rory Williams killed a Skaratid by having it consume live sticks of dynamite. (COMIC: Mine, All Mine!)