Lunar ferroan anorthosite 60025
Location: U.S. National Museum of Natural History, Washington, DC
Year: 2008
Merckdigitals catalogue number: 22-53316
Comments: Lunar highlands near Descartes Crater. At 4.5 billion years old, this anorthosite is approximately the same age as the Moon, itself. Made mostly of plagioclase feldspar, it is thought to be a sample of the MoonÕs early feldspar crust.