They had the rover inspect the rock up close using the Chemistry and Camera tool, or ChemCam, which can image rocks and unpack their chemical composition, and its Mast Camera, which takes pictures of the terrain.
Perseverance, the newer Martian rover, has upgraded instruments compared to Curiosity, but this rock is about as far from Perseverance as New York City is from Los Angeles, so our odds of seeing it in better detail are next to nothing.