chalk (Q41362)
From geokb
A generally soft, white, very fine-grained, extremely pure, porous limestone
- Alm
| Language | Label | Description | Also known as |
|---|---|---|---|
| English | chalk |
A generally soft, white, very fine-grained, extremely pure, porous limestone |
|
| Language | Label | Description | Also known as |
|---|---|---|---|
| English | chalk |
A generally soft, white, very fine-grained, extremely pure, porous limestone |
|
