Chemicals for testing gold
Guess the chemical by the colour, and its use. These chemicals were used for assessing the quality of gold and other metals and were left behind when the school closed. The School of Mines operated between 1939 to 1972.
Guess the chemical by the colour, and its use. These chemicals were used for assessing the quality of gold and other metals and were left behind when the school closed. The School of Mines operated between 1939 to 1972.