Sayh al Uhaymir 169

Sayh al Uhaymir 169 (SaU 169) is a 206g lunar meteorite found in the Sultanate of Oman in January 2002.

This stone is an impact-melt breccia with exceedingly high concentrations of thorium and other incompatible elements; phosphorus, the rare earth elements, and the three most important naturally occurring radioactive elements, potassium, thorium, and uranium have been segregated in the liquid phase when the lunar minerals crystallized. The impact that eventually sent this stone to the Earth is dated at 3.9 million years and could be the Imbrium impact.