Fig. 8: Hyperspectral imaging signal.
From: The Dutch Apollo 11 Goodwill display contains genuine Moon rocks

Summed image (a), spectral band-coloured image (b) and spectrum at the dotted locations with a 3-pixels neighbourhood size (c). Cross, circle, and diamond markers in (a) and (b) refer to the corresponding per-pixel (with 3-pixel neighbourhood size) spectrum in (c).