Additional examples are adjusted to the entries in an automated way - we cannot guarantee that they are correct.
The first is xyloid lignite or fossil wood and the second form is the compact lignite or perfect lignite.
Although xyloid lignite may sometimes have the tenacity and the appearance of ordinary wood it can be seen that the combustible woody tissue has experienced a great modification.
Xyloid coal - also known as lignite, often referred to as brown coal, is a soft brown fuel with characteristics that put it somewhere between coal and peat.
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