1. Impact
When high-speed iron meteorite charging towards the earth enters the atmosphere, an intense friction occurs between the surface of the meteorite and the atmosphere, resulting in a continuous combustion and explosion. And in the process of combustion and explosion, high-temperature and equal-pressure plasma air masses form. 5,6,7 Plasma is a kind of air mass mainly composed of free electrons and charged ions.
2. Mach Effect
The plasma that remains on the earth's surface forms a special space. Possessing a high conductivity, the air mass expands continuously under the influence of the strong coupling action with the electro-magnetic field. According to Mach Effect, as the temperature of plasma drops, a fluid mechanics separation happens to the plasma near the earth's surface, yielding three kinds of particles: 5,6,7 free electrons, ions with positive charges and atoms without charges. These particles of different density fill up the atmosphere.
3. Explosion
When the meteorite crashes into the ground, a violent explosion happens. The explosion generates a blast wave and releases an enormous amount of energy, flinging the solid explosives in the vicinity into the sky, and leaving again the plasma over the ground in a state of high temperature and high pressure.
4. Fumigation effect
In this particularly complex environment, plasma comes to possess a high fluidity and permeability. Under the fumigation effect of high temperature and pressure and thanks to the penetration of plasma, a variety of elements produced by the explosion infiltrate into the stones precipitated into the air during the explosion.
5. Formation
As the explosion-caused substances fall, pumice is gradually formed, and after a rapid cooling process, pumice condenses into some microcrystalline structure, which is what we call Bianstone.