mica
The rock you are describing sounds like shale. Shale is a type of sedimentary rock that is made up of fine layers or sheets, which can easily break apart into smaller pieces. It often contains small round pebbles or grains of different minerals.
Slate is a fine-grained metamorphic rock that easily splits into thin layers, making it suitable for cutting into tiles. Gneiss, on the other hand, is a coarse-grained rock with a more irregular composition, which makes it harder to work with and less suitable for making tiles.
It is smooth. Graphite is made up of crystals. It will have angles.
The process is called mechanical weathering or freeze-thaw weathering. Water seeps into cracks in the rock, freezes, expands, and ultimately breaks the rock apart as the ice expands.
The stress that squeezes rock until it folds or breaks is called compressional stress. This type of stress occurs when forces push together in opposite directions, causing rocks to deform under pressure.
mica
It breaks rock into smaller pieces that are more easily moved by the agents of erosion.
It breaks rock into smaller pieces that are more easily moved by the agents of erosion.
If the rock is granite, the pink spots are probably feldspar. Look for colorless spots and black shiny flaky spots, these will be quartz and mica, which are the other components of granite. Pink spots on a flaky, shiny, micacaeous grey or black rock might be garnets in mica schist.
it depends on how it actually breaks
The Solid Form of Water that breaks rock is called "ice".
Schist is not easily carved because it is a metamorphic rock that tends to be hard and have a flaky structure. It is prone to breaking along its layers, which makes it challenging to carve intricate details. However, with the right tools and techniques, skilled artisans can still work with schist for sculpting and other artistic purposes.
Water seeps into cracks and breaks apart the rock or water rubs the side of the rock that is exposed and breaks off pieces of the rock.
The rock you are describing sounds like shale. Shale is a type of sedimentary rock that is made up of fine layers or sheets, which can easily break apart into smaller pieces. It often contains small round pebbles or grains of different minerals.
Slate is a fine-grained metamorphic rock that easily splits into thin layers, making it suitable for cutting into tiles. Gneiss, on the other hand, is a coarse-grained rock with a more irregular composition, which makes it harder to work with and less suitable for making tiles.
Faults
It is smooth. Graphite is made up of crystals. It will have angles.