This variety of Meteorite is called a pallasite. It is the kind that has olivine crystals embedded inside a nickel iron or stony iron matrix. This slice is from a meteorite that fell in 1951 in Esquel Argentina. It is considered one of the most stable, high quality pallasites, and is quite sought after because of that. This piece is a fine example with highly reflective nickel iron and golden yellow olivine patches. There are two micro chips out of two perimeter olivines on the lower right side of the back of the slice (second pic). This is common and due to the slicing process.