Tammy

Diatomite Rock
Sedimentary Rocks

Diatomite Rock Type, Composition, Formation, Occurrence

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Tammy

Diatomite is a chalk-like, friable, soft, earthy, and fine-grained siliceous sedimentary rock. The rock is also called diatomaceous earth. It ...

Oil Shale Rock
Sedimentary Rocks

Oil Shale Rock Type, Composition, Classification, Occurrence

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Tammy

Oil shale is a fine-grained, organic-rich sedimentary rock that produces oil and combustible gas upon destructive distillation. The rock primarily ...

Metamorphic Rocks

Schist Rock Type, Composition, Formation, & Uses

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Tammy

Schist is a foliated metamorphic rock composed of plate-shaped mineral grains. The mineral grains are large enough to be seen ...

Skarn Rock
Metamorphic Rocks

Skarn Rock Type, Composition, Classification, Occurrence & Uses

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Tammy

Skarn is a non-foliated metamorphic rock created by metasomatism. An interesting fact about skarn is that its chemical or mineral ...

Slate Rock
Metamorphic Rocks

Slate Rock Type, Composition, Formation, Occurrence & Uses

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Tammy

Slate is a fine-grained, homogenous, and foliated metamorphic rock that forms due to regional metamorphism. Its parent rock is shale ...

Soapstone Rock
Metamorphic Rocks

Soapstone Rock Type, Composition, Formation, Occurrence & Uses

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Tammy

Soapstone is a non-foliated metamorphic rock. The name “soapstone” is derived from soapy feel and texture. It is also known ...

Verdite Rock
Metamorphic Rocks

Verdite Rock Type, Composition, Properties, Occurrence & Uses

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Tammy

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

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Tammy

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

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Tammy

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

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Tammy

University of Kansas defines caliche as a broad term that defines sediment (sand, silt, gravel, and clay) or soil cemented ...