Question

What is metallic minerals .
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Answer 1

The minerals which contain metal compounds are known as metallic minerals

Answer 2

metallic minerals they are hard subject science or a luster metals obtained from its Ore can be mould into any shpes. metallic mineral


The mining exploration of metallic mineraldeposits has as a consequence the exposure of large quantities of sulfides to weathering processes (oxygen, water, and bacteria) that generate acidic environments which promote metal(loid) solubilization. The water acts as a reagent, as the medium in which the chemical reactions proceed, and as a transport vector of the formed products. These waters constitutes the so-called “acid mine drainage” or “acid and metalliferous drainage” (AMD) (Schmiermund and Drozd, 1997; Cánovas et al., 2007; Seal and Shanks, 2008; Koski et al., 2008; Foster et al., 2008; Romero et al., 2011; Davies et al., 2011; Favas et al., 2012; Soltani et al., 2014; Li et al., 2015).

According to Schmiermund and Drozd (1997), the term “acid mine drainage” was originally used to describe effluents resulting from underground mining operations, which were characterized by low pH values. However, those authors assumed a critical position regarding the use of the expression to classify most mining effluents. They considered the term inappropriate because of its limited scope, which often led to misconceptions. The justification for this position is made essentially based on two premises. On the one hand, the authors report that low pH values are not a universal characteristic of mining effluents. In fact, effluents generated in a mine may also be neutral or alkaline, depending on the paragenesis of the mineral deposit. On the other hand, the most worrying aspect in relation to the environmental effects of mining effluents may not be the low pH but rather the high content of heavy metals, sulfates, suspended solids, etc.

Thus, Schmiermund and Drozd e reducing environments and under temperatures significantly higher than atmospheric. Thus, when these minerals are exposed to surface environmental conditions, they tend to disintegrate chemically to form new compounds until equilibrium it is restored (Park and MacDiarmid, 1975; García-Lorenzo et al., 2012; Wei and Wolfe, 2013; Li et al., 2015).

Before the development of mining activities, the amount of sulfides exposed to the favorable condition of this oxidative weathering is reduced. As a consequence of mining exploration, large quantities of sulfides are exposed to oxygen, water, and bacteria that generate acidic environments which promote the metal(loid) solubilization, forming AMD.

The abandonment of a mine as the final episode of mining activities leads in many cases to the maintenance of or even an increase in acid drain