Limestone and clean sandstone look somewhat similar to the rocks of the lunar highlands but were never considered seriously as candidate rock types for the lunar highlands. They are not a good enough color match. They are sedimentary rocks and there is no atmosphere on the Moon to deposit sedimentary rocks . They are metamorphic rocks and could not be on the lunar surface. They are igneous rocks but could not be formed on the Moon.
Earth is the only terrestrial planet with a satellite.
There are five major geologic provinces on the Moon. The layer of broken rock on the surface of the Moon which masks all underlying rocks and was formed by impacts is called the regolith. None of the rocks were collected from their place of formation, i.e., none were bedrock samples . Its density . Sedimentary layering in the crater walls.