- Shale is a fine-grained, clastic sedimentary rock formed from mud that is a mix of flakes of clay minerals (hydrous aluminium phyllosilicates, e.g. kaolin, Al2Si2O5(OH)4) and tiny fragments (silt-sized particles) of other minerals, especially quartz and calcite. Shale is characterized by its tendency to split into thin layers (laminae) less than one centimeter in thickness. This property is called fissility. Shale is the most common sedimentary rock.
- Norm Macdonald on Germany (YouTube)
Norm Macdonald on David Letterman’s last episode of The Late Show in 2015. It has been said that this is Norm’s best joke by fellow comedian Jerry Seinfeld.
