There are tin deposits right across the world, though most tin now comes from the southern hemisphere—and chiefly from south-east Asia. The most important producer countries are now China, Indonesia, Peru, Bolivia, and Brazil.
Besides, where tin is mined?
The tin mineral casseterite is mainly found in Southeastern Asia countries, such as Malaysia, Thailand, Indonesia, Bolivia and Nigeria. Bolivia's Huanuni Tin Mine was discovered by accident and was the world's largest underground mine for tin from the late 1940s through the end of the 20th century.
What does Wheal mean in Poldark?
As you rightly say, Wheal is Cornish for 'workings' and 'bal' which means 'mine' is also used. In addition to place names, mines were named for people – most often the owners' female relatives, so we have Wheal Kitty and Wheal Jane, for instance.
Where can tin be found in the world?
Tin is found principally in the ore cassiterite (tin(IV) oxide). It is mainly found in the 'tin belt' stretching through China, Thailand and Indonesia. It is also mined in Peru, Bolivia and Brazil. It is obtained commercially by reducing the ore with coal in a furnace.