grauwacke in a sentence
n.
Definition
Grauwacke is a type of coarse-grained sandstone characterized by a mixture of quartz, feldspar, and rock fragments, commonly used as a building material.
Sample Sentences
- Grauwacke is commonly used as a building material in various regions of Europe.
- The geologist explained that grauwacke is a type of sandstone rich in quartz and feldspar.
- In the mountainous areas, formations of grauwacke can often be seen in the exposed rock faces.
- While studying sedimentary rocks, we came across a striking example of grauwacke.
- The unique composition of grauwacke makes it an interesting subject for geological research.