1.44" Polished Vaca Muerta Mesosiderite Meteorite (9.7 g) - Chile

The Vaca Muerta Mesosiderites were first recognized in 1861. Several large masses were found and distributed to the world museums. However, recently a new specimen was discovered after almost 100 years. Several rare eucrite-type inclusions have been found inside this meteorite and are now being studied to help understand the mysteries of its formation.

Mesosiderites are believed to form when a silicate-rich asteroid collides at high speed with a metal-rich asteroid, smashing together and mixing their contents to form this unusual, rare meteorite.