impure-coal (Q42517)
From geokb
An impure coal containing 15 to 50% ash (or 50 to 85% organic matter
| Language | Label | Description | Also known as |
|---|---|---|---|
| English | impure-coal |
An impure coal containing 15 to 50% ash (or 50 to 85% organic matter |
| Language | Label | Description | Also known as |
|---|---|---|---|
| English | impure-coal |
An impure coal containing 15 to 50% ash (or 50 to 85% organic matter |
