Can you tell what compositional category (ultramafic, mafic, intermediate, or felsic) these igneous rocks belong to? Click the purple hotspots to check your answer.

Rock colours in this figure-- Upper left: dark grey to black; Upper right: white, pink, black specks; Lower left: shades of green; Lower right: white with specks of black

IMAGE CREDITS Upper left: Mark A. Wilson (2008) Public Domain. View source. Upper right: James St. John (2015) CC BY 2.0. View source. Lower left: Jean-Michel Harouy (2019) CC BY-SA 4.0. View source. Lower right: Siim Sepp (2005) CC BY-SA 3.0. View source. Activity shared by Karla Panchuk (2020) CC BY-SA.