* Organic Origin: Coal is formed from the remains of ancient plants, primarily trees, that died and were buried under layers of sediment.

* Sedimentary Process: Over millions of years, the plant material is compressed and heated under immense pressure. This process transforms the organic matter into coal, a solid, carbon-rich rock.

* Sedimentary Structure: Coal often exhibits layers and bedding planes, characteristic of sedimentary rocks formed from the accumulation of sediments.

While coal has a unique origin from organic matter, it shares the defining characteristics of sedimentary rocks:

* Formed from the accumulation and cementation of sediments

* Typically layered or stratified

* Contains fossils or evidence of past life (in this case, the plant remains)

Let me know if you have any other questions about coal or sedimentary rocks!