Sedimentaire gesteentes - Claystone

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Claystone

last modified by TerraIndex TerraIndex

on 2021/09/30 15:18

Table of Contents

Claystone is a clastic fine-grained sedimentary rock composed of cemented clay-particles. With it grainsize it is comparable with mudstone and siltstone, but the particles need to be clay-size and a minimum of 50% of the rock needs to be composed of clay-sized particles.

Claystones often are mistaken for siltstone or mudstone, but the difference lies in the amount of clay-size particles present. To distinguish them the following definitions can be used:

Siltstone – more than half of the composition is silt-sized particles.

Claystone – more than half of the composition is clay-sized particles.

Mudstone – hardened mud; a mix of silt and clay sized particles

Characteristics

Claystone is made up from different clay-minerals and can therefor have many different colors. Moreover claystone has a hardness of 3.5 on Mohr's scale and is smooth to touch.

References

https://www.britannica.com/science/claystone

Claystone

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Contents

Characteristics

References

Claystone