Meteorites are of three kinds: stones, irons, and stony irons. Each corresponds to a different part of planet formation. The stones resemble pieces of planetary crust and mantle, the irons the planet cores, and the stony irons the transitional area between core and mantle. In some stony irons, translucent crystalline structures interpenetrate with opaque mantle rock. Collectors sometimes cut stony irons into thin slices and illuminate them from one side for a gorgeous stained-glass effect. Only one per cent of all meteorites are stony irons. Five per cent are irons, and the remaining ninety-four per cent are stones. I The main function of the paragraph is to: A) identify the three kinds of meteorites and provide information about each kind.

B) describe the chemical structure of the different types of rock found within the meteorites classified as stones.

C) explain why some meteorites contain both crystalline structures and opaque mantle rock.

D) list common ways collectors display pieces of meteorites.

PLEASE HELP ME NO​