Many global mining experts predict that at current consumption rates, the planet's economy over the next 70 years will undermine the current known reserves, which are likely to consume half of the world's current metals. Shortly, increasing dependence on essential mineral imports, plus global competition for scarce resource resources, will increase prices and bargain for exporting countries.

Most applications of this metal today have only been developed in the last two or three decades. This trend is likely to continue. As our society needs more advanced and safer materials, our use of gold increases. This growing demand, low number of alternatives and limited supply makes the value and importance of gold increase gradually and steadily.

Zinc is found in several ores, the principal ones being zinc blende (zinc sulfide) and calamine (zinc silicate). The principal mining areas are in China, Australia and Peru. Commercially, zinc is obtained from its ores by concentrating and roasting the ore, then reducing it to zinc by heating with carbon or by electrolysis. World production is more than 11 million tonnes a year.

Some silver compounds, such as nitrogen azide, amide, acetyl, oxalate, and silver (II) oxide ‎compounds, are highly explosive; they can explode on heating, impact, light, and sometimes ‎spontaneously. To prevent the formation of such compounds, ammonia and acetylene should be ‎kept away from silver equipment.‎

When the concentration of aluminum in the environment increases, it has severe effects on human health. Water-soluble aluminum is dangerous. Particles of aluminum that dissolve in water are called ionic particles, for example, aluminum chloride. Other ways to increase the amount of aluminum in the body are to breathe and make skin-to-skin contact with aluminum. 

The copper is commonly found in nature along with sulfur. Generally, it is produced from a multi-stage process that starts from mining and concentrate of low-value copper ore sulfide ore and after melting and electrolytic purification produces pure copper cathode. Increasing the share of copper in acid washing of metal oxide metal is obtained.