Example image of eyePlorer eyePlorer map for 'Shale': Calcite Clay minerals Quartz Sedimentary rock Schist Slate Coal mining Fissility (geology) Mudstone Rock (geology) Siltstone Redox Biotite Chlorite group Goethite Hematite Illite Limonite Kaolinite Montmorillonite Paleozoic Tertiary Silicon dioxide Albite Ankerite Authigenic Chert Dolomite Pyrite Compaction (geology) Rock cycle Floodplain Lagoon River delta Continental shelf Carbon Anoxia Mesozoic Stratum Hydrothermal circulation Seawater Fossil Concretion Metamorphic rock Metamorphism Gneiss Phyllite Shale gas in the United States Alum shale Bituminous rocks