Crusted Martian Nakhlite Meteorite paired with NWA 10645 - 8.10g

Nakhlites are a group of Martian meteorites, named after the first one, Nakhla meteorite. Nakhlites are igneous rocks that are rich in augite and were formed from basaltic magma about 1.3 billion years ago on Mars.  The nakhlite meteorites, named after El Nakhla, a village in the Beheira Governorate in Northern Egypt where they were first discovered, contains evidence of water activity on Mars that occurred millions of years ago.  They contain augite and olivine crystals. Their crystallization ages, compared to a crater count chronology of different regions on Mars, suggest the nakhlites formed on the large volcanic construct of either Tharsis, Elysium, or Syrtis Major Planum. 

Tharsis is a vast volcanic plateau centered near the equator in the western hemisphere of Mars.  This region is home to the largest volcanos in our solar system.  Elysium, in the eastern hemisphere of Mars, is the second largest volcanic region on the planet, after Tharsis. The largest shield volcano, Elysium Mons, is at center.  Syrtis Major Planum is a "dark spot" (an albedo feature) located in the boundary between the northern lowlands and southern highlands of Mars just west of the impact basin Isidis in the Syrtis Major quadrangle. It was discovered, on the basis of data from Mars Global Surveyor, to be a low-relief shield volcano.  Scientists believe that this piece of Mars came from one of these three locations on the red planet! 

The weight of this piece is 8.10g

The measurements are about 22x20x15mm.