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FeSi2 Ferro Silicide
Chinese Name: iron silicide
It's also known as ironsilicide grayholder
Chemical formula FeSi2
The molecular weight is 119.975 CAS
Accession number 12022-99-0 EINECS
Accession number 234-671-8
Melting point 1410 ℃
Water soluble, insoluble in water
The density was 4.79g/cm3
Appearance gray powder
Rumor: "silicide" is alien "black box"
1: Yuri lavbin, chairman of the tungusian cosmological phenomena foundation, has discovered a
silicon crystal called "ferrosilicide" which cannot be formed naturally in nature.
Fact: the natural silicified iron, i.e. disilicite, was first discovered in Devonian sandstone along the
coast of the Soviet Union. At that time, it was speculated that the genesis of meteorite was
meteorite , and the discoverer was also the former Soviet geologist. In addition, there were
many domestic reports, and many of them were not meteorite origin but magmatic origin at all ,
which was also clearly pointed out in the literature.
2: Neon, xenon, argon It is impossible for such a combination of material components to form in
the earth's environment.
Fact: Neon , xenon , argon  often exist in geological samples, and can be used for in-depth
study of metallogenic conditions and time, and corresponding references can be seen.
3: Even the most powerful laser instruments leave only slight marks on iron silicide
Fact: Ferrosilicon has a hardness of about 6.5 , depending on the type, and is even
harder than the common quartz (i.e., crystal, which has a hardness of 7).
To sum up, the so-called rumor that Tungus discovered the alien "iron silicide" was
imported by foreign countries has a lot of scientific hard damage, is not credible at all,
and should not be spread rumors.