Composition of Sedimentary Rocks (Part 3)
Gypsum and Halite
Gypsum, shown left, and halite, shown right, are common examples of evaporitic sedimentary rocks. Both gypsum and halite form in extremely warm, arid environments.
Left: gypsum; right: halite (Photographs by Parvinder Sethi)
Feldspar and Mica
Feldspar and mica are common silicate minerals that are found in detrital sedimentary rocks.
Left: feldspar; right: mica (Photographs by Parvinder Sethi)