Seymchan iron/pallasite meteorite from Magadan District, Russia. Weight is 17 grams. The pallasite meteorite slice shown here consists of iron-nickel matrix with floating peridote crystals. These types of meteorites are thought to have originated from the core-mantle boundary of large, differentiated asteroids where the hot iron-nickel core mixed with the peridote (olivine) crystals of the deep mantle. After cooling and solidifying, the asteroid collided with another body causing fragmentation and exposing the deep core-mantle portion. Pallasites are a very rare type of meteorite. Upper photos are taken with microscope at 10X to show the detail of the peridote crystals and iron matrix. The beautiful image with the back-light shinning through the olivine crystal is what gives these meteorites the name “gems of the solar system”.