Rocks

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 ...

Chalk Rock
Sedimentary Rocks

Chalk Rock Type, Composition, Formation, Occurrence & Uses

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Tammy

Chalk is a soft, porous, and white sedimentary rock. It is a form of limestone but is softer than limestone. ...

Phyllite Rock
Metamorphic Rocks

Phyllite Rock Type, Composition, Formation, Occurrence & Uses

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Tammy

Phyllite is a foliated metamorphic rock. Due to low-grade pressure, heat, and chemical activity, the rock is composed of flake-shaped ...

Chert Rock
Sedimentary Rocks

Chert Rock Type, Composition, Formation, Occurrence & Uses

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Tammy

Chert is a fine-grained and hard sedimentary rock that usually has a biological origin. Chert can also exist inorganically as ...

Conglomerate Rock
Sedimentary Rocks

Conglomerate Rock Type, Composition, Formation, Classification, Uses

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Tammy

The conglomerate is an example of a typical sedimentary rock. It is a clastic sedimentary rock usually composed of rounded ...

Quartzite Rock
Metamorphic Rocks

Quartzite Rock Type, Composition, Formation, Occurrence & Uses

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Tammy

Quartzite is a widely available, hard, cheap, and durable non-foliated metamorphic rock. The rock is economically important because it has ...

Diabase Rock
Igneous Rocks

Diabase Rock Type, Composition, Formation, Occurrence & Uses

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Tammy

Diabase is a dark-colored fine-grained, intrusive igneous rock. Diabase is also known as dolerite in the United Kingdom and a ...

Granite Rock
Igneous Rocks

Granite Rock Type, Definitions, Composition, Formation, & Uses

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Tammy

Granite is one of the most famous rocks in the world. It is a light-colored, coarse-grained intrusive igneous rock. The ...