|A collection of fluorescent minerals under a UV lamp (Commons)|
|White light (NASA/JPL/MSSS)|
|Same scene under UV light (NASA/JPL/MSSS)|
Then MAHLI was aimed at the ground. Curiosity is now parked next to an interesting piece of rock exhibiting interesting patterns of erosion resistant spines protruding out of the softer rocky matrix with veins criss-crossing the whole thing. The veins of white gypsum were the subject of much hubbub since the last mission audio update because it means that this strata of rock may indicate a wet past on Mars together with other pieces of evidence such as an assortment of grains of different sizes in the rocks which may have been deposited under a watery environment.
|Target lit by white LED lamp (NASA/JPL/MSSS)|
|Same scene lit by UV lamp (NASA/JPL/MSSS)|