Planar features in rocks are any flat or nearly flat surfaces, such as:
* Foliation: A layered or banded structure in metamorphic rocks, caused by pressure during deformation. Examples include slate, schist, and gneiss.
* Bedded: Layering in sedimentary rocks, formed by deposition of different materials. Examples include sandstone, limestone, and shale.
* Fractures: Breaks or cracks in rocks. Examples include joints and faults.
* Cleavage: A tendency of rocks to split along preferred planes, often due to their crystal structure. Examples include mica and feldspar.
* Bedding Planes: These are the surfaces that separate layers of sedimentary rock.
These planar features can be used to understand the geologic history of a rock, including its formation, deformation, and stress history.
To help me understand what you meant by "planar rocks" please provide more context:
* What kind of rocks are you interested in? (Sedimentary, metamorphic, igneous)
* What is the context? (Geological studies, rock climbing, etc.)
With more information, I can give you a more specific answer!
