67736 is a crystalline impact breccia that was collected in a rake sample. It has a micropoikilitic texture and contains many large clasts of plagioclase feldspar. One cluster of plagioclase feldspar surrounds a large crystal of pink spinel (rotation 1). Pyroxene is an associated species. The clasts are notable for their lack of shock features. Metallic iron and troilite are the main accessory minerals present.
The sample weighed 14.9 grams before analysis and has not been dated.
Further details of this and other Apollo samples are here: http://curator.jsc.nasa.gov/lunar/
The Apollo 16 landing site was in the hilly region around Descartes crater in the lunar highlands. The landing spot was chosen to allow the astronauts to gather geologically older lunar material (Descartes Formation and the Cayley Formation) than the samples obtained in the first four landings, which were in or near lunar maria.
The mission lasted 11.1 days, with a stay on the lunar surface of 71 hours. The crew were on the lunar surface for 20.2 hours during which they traversed approximately 27 kilometers and collected approximately 96 kilograms of samples.
Apollo 16 was launched on 16 April 1972.