What is quartz? Detailed answer

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What is quartz? Detailed answer

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What is quartz?

We daily use quartz in everyday life and do not even think that it is quartz. Quartz is very widespread and has a huge use.

Quartz is also called silica. It consists of silicon and oxygen, is heavier than steel and is more transparent than glass.

Without impurities, quartz is colorless or white, various additives make it red, brown, green, blue, blue, even black. Sometimes quartz is found in the form of large transparent hexagonal crystals with sharp ends - this is "rock crystal".

Most mountains are made of quartz. Sandstone is made up of quartz particles held together by a cementing compound. Granite also contains quartz. White sands are pure quartz. Plain sand is also mostly quartz!

Many of the semi-precious stones are also quartz colored with various impurities. For example, agate, amethyst, onyx.

Quartz is used in the manufacture of glass and optical devices. Thin quartz plates are used in the radio so that we can tune our receivers to the desired wave.

If quartz is heated very strongly, we will get fusible quartz. This is a much needed product. It has a very high melting point - 1710 ° C, it shrinks and expands very poorly and is more transparent than glass!

You can imagine that such a material is indispensable in laboratories. A plate of fusible quartz, after heating red hot, can be lowered into water - and nothing will happen to it.

Quartz well passes light and heat rays. Quartz also transmits the life-giving ultraviolet rays that are absorbed by ordinary glass, so in some sanatoriums the roofs are made of fusible quartz. From it also make special quartz lamps used in medicine.

Author: Likum A.

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