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MINING
When industry mines an area, many additional minerals are uncovered. If you were to visit a copper mine and looked through all of the minerals you would probably find good amounts of selenium.
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TRACE ELEMENT
Here's an interesting fact. Large amounts of selenium will act as a poison but you need trace amounts of this mineral to survive. You usually get selenium in your diet when you eat meat.
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SOLAR CELLS
This is probably one of the most well known uses for selenium. Selenium has photovoltaic properties. That term means that it can convert light into energy. It just makes sense that selenium is an important part of any equipment design to convert the Sun's energy into electricity.
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GLASS
Add a pinch of selenium and you can give your glass creation a red color. Trace amounts of many elements will change the color of glass.
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PHOTOCOPIERS
In the same way that selenium is handy in a solar cell, it is also an element used in photocopiers. That light energy can really make this element work hard.
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POWER CONVERTERS
AC power comes out of the wall. DC power comes from a battery. Sometimes you want one type of power converted into the other. That converter often has a little selenium inside to make the magic happen.
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