Coal types by grade (lowest to highest) | ||
---|---|---|
Coal combustion | ||
Coal mining | ||
Note: [1] Peat is considered a precursor to coal. Graphite is only technically considered a coal type. |
This template's initial visibility currently defaults to autocollapse
, meaning that if there is another collapsible item on the page (a navbox, sidebar, or table with the collapsible attribute), it is hidden apart from its title bar; if not, it is fully visible.
To change this template's initial visibility, the |state=
parameter may be used:
((Coal|state=collapsed))
will show the template collapsed, i.e. hidden apart from its title bar.((Coal|state=expanded))
will show the template expanded, i.e. fully visible.