| Your weights in minerals

Perhaps you doubt the importance of mineral resources in our lives? If so, take around 730 tonnes of stone, sand and gravel, 30 tonnes of cement, 15 tonnes of iron ore, a touch less salt, 9 tonnes of phosphate rock, 9 tonnes of clay, 2.7 tonnes of bauxite (aluminium ore), 600 kg coppper, 420 kg of lead, 300 kg of zinc and 50 kg of gold. Throw in 30 tonnes of other ores and metals and you have the estimated ore consumption of a single American in their lifetime (a total of approximatively 840 tones).

Source: www.mii.org