Where on the moon do light-colored coarse-grained anorthosites rich in calcium and aluminum come from?

Light-colored coarse-grained anorthosites rich in calcium and aluminum on the Moon primarily originate from the lunar highlands. These rocks are believed to be remnants of the Moon's primordial crust formed during its early history when the surface was molten. As the magma cooled, plagioclase feldspar crystallized and floated to the surface, creating the anorthositic crust that we observe today. The highlands are characterized by their lighter color compared to the darker basaltic plains, reflecting their composition.