Meaning of the word shale in English

What does shale mean in English? Explore the meaning, pronunciation, and specific usage of this word with Lingoland.

shale

US /ʃeɪl/
UK /ʃeɪl/
"shale" picture

Noun

a soft, finely stratified sedimentary rock that formed from consolidated mud or clay and can be split easily into fragile slabs

Example:
The fossil was perfectly preserved in the shale.
Oil shale is a type of rock that contains kerogen, which can be converted into oil.