A rigid brittle rock is called a "fault rock". This type of rock typically forms along fault lines due to the intense pressure and tectonic forces acting on it, leading to its rigid and brittle nature.
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Igneous rock is typically rigid and strong due to the interlocking nature of its mineral crystals. However, its brittleness can vary depending on factors such as mineral composition, texture, and cooling rate during formation. In general, igneous rock can fracture along existing planes but can also deform plastically under high pressure and temperature conditions.
The zone of rigid, brittle rock that makes up the outermost layer of Earth is called the lithosphere. It includes the crust and the uppermost part of the mantle, and is divided into tectonic plates that move and interact with each other. Beneath the lithosphere lies the asthenosphere, which is a more ductile and deformable region of the upper mantle.
Earth's crust and brittle upper mantle is called the lithosphere.
A window is not typically rigid but can be brittle if it is made of glass. Glass is a brittle material that can shatter easily upon impact. Other window materials, such as plastic or acrylic, may be more flexible and less likely to break.
it is the crust because the crust is thin and rigid with rock