Pale Shale

Shale

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.

Colorfulness

Colorfulness, chroma and saturation are attributes of perceived color relating to chromatic intensity. As defined formally by the International Commission on Illumination (CIE) they respectively describe three different aspects of chromatic intensity, but the terms are often used loosely and interchangeably in contexts where these aspects are not clearly distinguished. The precise meanings of the terms vary by what other functions they are dependent on.

pale

Adjective

1. Light in color.
2. Having a pallor (a light color, especially due to sickness, shock, fright etc.).

Verb

1. To turn pale; to lose colour.
2. To become insignificant.

shale

Noun

1. A shell, scale or husk; a cod or pod.
2. A fine-grained sedimentary rock of a thin, laminated, and often friable, structure.

Verb

1. To take off the shell or coat of.