Red slate metamorphic rocks are a metamorphosed shale. Slate can vary in color and is easily broken into sheets for building materials.
Raw Red Slate, Metamorphic Rock Specimen - Hand Sample - Approx. 3
Geology - Acadia National Park (U.S. National Park Service)
Amphibolite schist with cubic pyrite crystals, isle of Giga
21 Rock cycle ideas rock cycle, rock, rocks and minerals
Metamorphic Rocks, Volcano World
Slate - Wikipedia
15,667 Metamorphic Rock Images, Stock Photos, 3D objects
Slate: Metamorphic Rock - Pictures, Definition & More
Igneous rock