The article discusses regularity of all aspect affects X - ray spectrometer accuracy with a lot of datum during making Ferro Silicon, and formulates the method of making Ferro Silicon.

"At this point, the origin of Mercury's large core is still a mystery," said Larry Nittler, a cosmochemist at the Carnegie Institution of Washington who led the X-ray spectrometer study.

The scanning electron microscope provides information on chemical composition by use of X-ray spectrometer attachments.