The flood unearths new seams of tin ore, saving the town's economy.

Instigated the deep mining that discovered large quantities of tin ore.

By mid-19th century Kulim experienced a boom due to the discovery of tin ore.

Reaching between the roots, he plucked out a black rock, heavy with tin ore.

This kind of deposit is especially common with tin ore.

At the beginning of the 1870s, for example, the mine produced 8-9 tons of tin ore per year.

Almost simultaneously, the first tin ore was discovered on the southern edge of the mountains in Bohemia.

There is no natural copper or tin ore in Norfolk so all raw materials must have been imported, probably by trading.

Inside, there were veins of bright purple tin ore.

After collection the tin ore had to be crushed, concentrated and then smelted.