Researchers analyzing a piece of Mars found on Earth have identified something unusual inside the meteorite. Scientists have found a new type of rock inside a Martian meteorite that contains andradite garnet, a mineral often associated with gemstones on Earth. The rock was discovered inside the NWA 8171 meteorite, which was found in the Sahara Desert in 2013. Researchers confirmed the meteorite’s Martian origin through several types of evidence. The research team notes that the fragment being embedded in a confirmed Martian meteorite is another strong indication of its origin.