slate (Q41935)
From geokb
compact, fine grained rock with an average grain size less than 0.032 millimeter and a well developed schistosity (slaty cleavage), and hence can be split into slabs or thin plates.
| Language | Label | Description | Also known as |
|---|---|---|---|
| English | slate |
compact, fine grained rock with an average grain size less than 0.032 millimeter and a well developed schistosity (slaty cleavage), and hence can be split into slabs or thin plates. |
