Dysodile vs. Coaly — What's the Difference?

(mineral) A soft, finely laminated, greenish or yellowish-grey impure earthy or coaly bitumen, which emits a highly foetid odour when burning.

Resembling coal.

An impure earthy or coaly bitumen, which emits a highly fetid odor when burning.

Covered in, or containing, coal.

Pertaining to, or resembling, coal; containing coal; of the nature of coal.