411. [Apollo 16] CHARLES DUKE AT SHADOW ROCK, STATION 13 John Young, 16-27 April 1972, EVA 3 Printed 1972. Vintage chromogenic print on fibre-based Kodak paper [NASA image AS16-116-18671]. With three filing holes in the top margin not affecting the image, with "A Kodak Paper" watermark on the reverse, numbered "NASA AS16-116-18671" in red in the top margin (issued by NASA Manned Spacecraft Centre, Houston, Texas). 25.4 x 20.3 cm. (10 x 8 in). Historical context Scooping up the Moon's secrets. Charles Duke leans on Shadow Rock at Station 13, closely inspecting the rock's mineral composition. The scoop, a crucial geological hand tool, rests against the boulder, ready for sample collection. The 5-m-wide and 3-m-high boulder offered a fascinating scientific target for the crew due to its unique mineral inclusions, and also a permanently shadowed area beneath its deep overhang on the western end (out of picture to the left), giving it its name. "In the back of my mind was, you never knew what was going to be behind the next rock. So, it was like an Easter-egg hunt. What am I going to find next?" Charles Duke (Chaikin, Voices, p. 82) From the mission transcript when the photograph was taken: 168:36:08 Young: Okay. Let me take a picture for you, Charlie. Where at and how much? 168:36:09 Duke: Oh, that's okay. Look at this! 168:36:12 Duke: Tony (England at Mission Control), this is the black matrix with some excellent crystals in it that also are milky in colour. Don't see any cleavage though or striations. (The crystals are) about a centimetre across; and it has a matrix (means "clasts") of that white rock, like up on the rim (of North Ray Crater). (Correcting himself) Not a matrix, but some clasts of that (white material).