Tin ore is an ore used to create bronze. Along with using copper ore, and is the first ore a player can mine through the mining skill. It grants 17.5 mining experience for each ore mined.
It can be found in various mines around the map, most notably the lumbridge swamp mine.
a player can smelt tin ore into a bronze bar through the smithing skill by using it on a furnace along with a copper ore. granting 6.2 smithing experience. Bronze bars can then be used on anvils with a hammer to create bronze items, granting 12.5 experience per bar.