1.6" Polished Sericho Pallasite Meteorite (26.8 grams) - Kenya

This is a real treat: a 1.6" wide (26.8 grams) end-cut piece of a Sericho pallasite meteorite that was collected in 2016. These meteorites fragments found near the village of Habaswein had been known about for decades by camel herders, however they were disregarded until two brothers who were searching for their camels, stumbled upon them. Weeks of excavating ensued following their discovery. This fall site has produced over 2800 kg of the Sericho meteorite since 2016.

Pallasite meteorites are a class of stony-iron meteorites. They were once believed to have originated at the core-mantle boundary of asteroids that shattered through impacts, though a recent hypothesis is that they are a mixture of core and mantle minerals.

Pallasite meteorites consist of olivine (peridot) crystals that are surrounded in an iron-nickel matrix. Some pallasites will display interweaving structures known as Widmanstätten patterns or Thomson structures in areas of coarser metal. These structures are comprised of iron-nickel crystals commonly in the form of kamacite and taenite.

Less than 100 pallasite meteorites are known, with only four having been documented as observed during their fall.
Olivine (Peridot), Iron (Fe) & Nickel (Ni)
Habaswein, Sericho, Kenya, Africa
1.6 x 1.2", up to .6" thick, Weight: 26.8 grams