![American Educational Products Individual Rock Specimen: Shale, Red, Argillaceous | Fisher Scientific American Educational Products Individual Rock Specimen: Shale, Red, Argillaceous | Fisher Scientific](https://assets.fishersci.com/TFS-Assets/CCG/product-images/F59823~p.eps-650.jpg)
American Educational Products Individual Rock Specimen: Shale, Red, Argillaceous | Fisher Scientific
![Carboniferous Period Fossils Large Red-brown Shale Slab of Compressed Coal-age Forest Trees From Mazon Creek Fossil Beds, Morris, Illinois - Etsy Carboniferous Period Fossils Large Red-brown Shale Slab of Compressed Coal-age Forest Trees From Mazon Creek Fossil Beds, Morris, Illinois - Etsy](https://i.etsystatic.com/8954841/r/il/430a86/3267472307/il_570xN.3267472307_4cvf.jpg)
Carboniferous Period Fossils Large Red-brown Shale Slab of Compressed Coal-age Forest Trees From Mazon Creek Fossil Beds, Morris, Illinois - Etsy
![File:2015-10-22 16 38 47 Native red shale and clay soil along Tranquility Court in the Franklin Farm section of Oak Hill, Virginia.jpg - Wikimedia Commons File:2015-10-22 16 38 47 Native red shale and clay soil along Tranquility Court in the Franklin Farm section of Oak Hill, Virginia.jpg - Wikimedia Commons](https://upload.wikimedia.org/wikipedia/commons/e/ed/2015-10-22_16_38_47_Native_red_shale_and_clay_soil_along_Tranquility_Court_in_the_Franklin_Farm_section_of_Oak_Hill%2C_Virginia.jpg)
File:2015-10-22 16 38 47 Native red shale and clay soil along Tranquility Court in the Franklin Farm section of Oak Hill, Virginia.jpg - Wikimedia Commons
![File:Gypsiferous red shale (thin, irregular gypsum plates in hematite-rich shale), Moenkopi Fm. (Lower Triassic), Virgin River Valley, near Zion National Park, sw Utah 1 (8428555154).jpg - Wikimedia Commons File:Gypsiferous red shale (thin, irregular gypsum plates in hematite-rich shale), Moenkopi Fm. (Lower Triassic), Virgin River Valley, near Zion National Park, sw Utah 1 (8428555154).jpg - Wikimedia Commons](https://upload.wikimedia.org/wikipedia/commons/6/6f/Gypsiferous_red_shale_%28thin%2C_irregular_gypsum_plates_in_hematite-rich_shale%29%2C_Moenkopi_Fm._%28Lower_Triassic%29%2C_Virgin_River_Valley%2C_near_Zion_National_Park%2C_sw_Utah_1_%288428555154%29.jpg)