It was almost impossible to refine. It was very expensive to get the aluminum out of the ore. It was so costly that it was worth more than gold or silver or even platinum. It wasn't until large quantities of electricity were available that smelting processes were created that allowed inexpensive refining.
Please define "olden days" because each time had different things. To some people 1950 is the "olden days".
olden days irons were built using stone or antique metal
In the olden days, the form of trade that existed in South Africa was barter trade. This means that instead of using money, people would exchange goods for other goods or services.
People used smoke signals, drums and some people had messengers. Yes people did communicate by drawing on rocks which are called rock paintings.
they used the sun and saw where the shadow was to tell the time
Discuss the purification methods used in the olden days
in the olden days we used smoke,light reflection and beacons
Discuss the purification methods used in the olden days
Steel, cast iron, aluminum, brass, wood, copper and no plastic!
Cloth.
on the water.
In the olden days there were no banks so people used to keep their money under their heads
letters
guns and cannons
In the olden days it was used for entertainment.
It all depends on what sense you are speaking of; because in the "olden days," as you say, candles were used in order to provide some light in dark places.
the roads were used for carriges and horses to get transport in the olden days.