Sample of „pristine“ (i.e. not contaminated by siderophilic elements through meteorites) KREEP basalt (sample no. 15386), collected during Apollo 15 mission at Hadley-Apennine region near Apennine Mountains. The size of the sample is about 2 cm and its weight is 7.5 grams. The rock’s age is about 3.9 Billion years.