Shelter Island meteorite

Shelter Island meteorite was found on Mars by the Opportunity rover on October 1, 2009. It is about 27 cm long.

History
Shelter Island was the second of three iron meteorites encountered by the rover on Meridiani Planum within a few hundred meters, the others being Block Island and Mackinac Island.

Shelter Island may have fallen on Mars in the late Noachian period and is extensively weathered.