David,
One one of the Ice Truckers shows last year they showed two big trucks hauling fertilizer and diesel
oil to a remote open pit diamond mine. That was what they used to blow the sides of that mine in as they said it was more effective than dynamite and less dangerous as long as they stored it away from each other. They used the same type of holes as for a stick of dynamite and when they set it off the whole side of that mine just vanished and was a pile of rubble at the bottom.
Ron