Spall - A stone or rock splinter
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The rock formed by cooling a liquid rock after processing is called a crystal.
When lava solidifies, it is called igneous rock.
Melted rock beneath the Earth's surface is called magma.
Rigid brittle rock is called "brittle rock," which fractures easily under stress without significant deformation. Examples include basalt, granite, and shale.
The original rock that exists before it undergoes metamorphism is called a parent rock or protolith. This parent rock can be any type of rock, such as sedimentary, igneous, or another metamorphic rock, that is subjected to high temperature and pressure to form a metamorphic rock.