It is a pallasite; a type of iron meteorite, quite rare, made out of large olivine crystals in an iron-nickel matrix. Olivine is a magnesium iron silicate, quite common in our planet’s subsurface, but which weathers fast when exposed to the surface.
Pallasites are extremely rare, even among meteorites (only about 1% of all meteorites are this type) and they are by far the most beautiful. Slices from the Fukang mass, as in this photo, are reminiscent of stained glass windows, crafted in the solar system.
Photo courtesy of Arizona Meteorite Laboratory
For more photos and info see:http://upall.co/