Mesosphere - 50 to 80 km - in the lower part of the stratosphere. The temperature drops in this layer to about -100 degrees Celsius. This is the coldest region of the atmosphere. This layer protects the earth from meteoroids.
The most significant uses of coal are in electricity generation, steel production, cement manufacturing and as a liquid fuel. Steam coal - also known as thermal coal - is mainly used in power generation.
It has to have a volcano, be rich in topaz ryolite, in addition to it has to cool at the right temperature so gaps can form and Beryllium reacts with water forming the crystals. It has to have VERY specific conditions for it to form and takes a very long time making it very rare.
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The extreme heats and drought meaning little rain.
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