How do miners find minerals in the rocks?

Answer 1

The simplest way is to look at the rock. Many of the most common minerals are very easy to identify. Criteria like the colour, cleavage, hardness, luster, reaction to certain chemical and many other qualities give hints.

Most rocks are made of a quartz, calcite, and feldspars. These are fairly simple to tell apart. There are thousands of different minerals though (but most are very rare).

Also, under a microscope, thin sections of rocks can be made. Again the minerals all have unique properties that can be seen here.

If minerals are too small to you can use XRD (X-Ray diffeaction). This involves hitting a sample of the rock with x-rays and measuring the x-rays that bounce off. Each mineral has a distinct pattern for how it gives off x-rays interact with it, so the result gives an idea of which minerals are present and in what amounts

Answer 2

By using mineral detection methods, like the use of magnetism for magnetic minerals such as magnetite, also the use of electricity, gravitation and waves in detecting and exploitation of other useful economic minerals.

Answer 3

It depends on what type of minerals they're looking for. Some minerals are visible with the unaided eye, but small amounts may require magnifying devices, possibly microscopes or chemical analysis. Surveys are done of surface formations and rock types, core drilling may be required, as well as laboratory analysis to determine the minerals in a given area.

Answer 4

Through mineral composition.

Answer 5

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Answer 6

by the color or size.