Rocks
Sedimentary Rocks
Diatomite Rock Type, Composition, Formation, Occurrence
Diatomite is a chalk-like, friable, soft, earthy, and fine-grained siliceous sedimentary rock. The rock is also called diatomaceous earth. It ...
Sedimentary Rocks
Oil Shale Rock Type, Composition, Classification, Occurrence
Oil shale is a fine-grained, organic-rich sedimentary rock that produces oil and combustible gas upon destructive distillation. The rock primarily ...
Schist Rock Type, Composition, Formation, & Uses
Schist is a foliated metamorphic rock composed of plate-shaped mineral grains. The mineral grains are large enough to be seen ...
Skarn Rock Type, Composition, Classification, Occurrence & Uses
Skarn is a non-foliated metamorphic rock created by metasomatism. An interesting fact about skarn is that its chemical or mineral ...
Slate Rock Type, Composition, Formation, Occurrence & Uses
Slate is a fine-grained, homogenous, and foliated metamorphic rock that forms due to regional metamorphism. Its parent rock is shale ...
Soapstone Rock Type, Composition, Formation, Occurrence & Uses
Soapstone is a non-foliated metamorphic rock. The name “soapstone” is derived from soapy feel and texture. It is also known ...
Verdite Rock Type, Composition, Properties, Occurrence & Uses
Verdite is not a rock but a trading name used for gray-green to bright-green metamorphic rocks. These rocks are green ...
Sedimentary Rocks
Coquina Rock Types, Composition, Formation, Occurrence
Coquina is a sedimentary rock mainly made up of sand-size fossil fuels. The rock is composed of either wholly or ...
Sedimentary Rocks
Breccia Rock Type, Composition, Formation, Types & Uses
Breccia is a group name for a set of clastic sedimentary rocks made of large angular fragments. The angular fragments ...
Sedimentary Rocks
Caliche Rock Type, Appearance, Formation, Occurrence & Uses
University of Kansas defines caliche as a broad term that defines sediment (sand, silt, gravel, and clay) or soil cemented ...
