Follow along each week as we highlight an #Astromaterials3D sample from our newly released 3D virtual library. For this #3DThursday check out Apollo 16 sample 60639. It is a highland breccia & the 1st sample completed as part of this project! Explore more: https://t.co/da5wW1yZL0 pic.twitter.com/4NceHNf7el

— NASA Astromaterials (@Astromaterials) December 17, 2020