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grauwacke
Glossaries
| Term | Definition |
|---|---|
| grauwacke | Grauwacke is a type of sandstone frequently used in construction and sculpture, particularly valued for its durability. Grauwacke is a sedimentary rock primarily composed of sand grains bound by a clay or siliceous matrix. This type of sandstone is characterized by its heterogeneous composition, often including larger rock fragments and minerals, which gives it substantial hardness and wear resistance. It has been extensively used in architecture and sculpture, especially in ancient Egypt, for creating statues and architectural elements due to its ability to withstand weathering and erosion. |

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