battery - strike lightning rode with thunder
oil - quake on desert
metal ore - mineral card on mountain biom
gold ore - chanse of genereting when meteor strike
brick - clay in smelter
glass - sand in smelter
metal - iron ore in smelter
gold bar - gold ore in smelter
Last item to get is plutonium, you will get it if u strike down ufo with thunder and mankind is peacefull