ebony

Boyd’s Bible Dictionary:

(stone-like). A hard, heavy, dark wood, used for ornamental work and musical instruments (Ezek. 27:15).

Concise Bible Dictionary:

The well-known hard black wood; it was imported with ivory into Tyre (Ezek. 27:15).
East Indian Ebony

Strong’s Dictionary of Hebrew Words:

Transliteration:
hoben
Phonic:
ho’-ben
Meaning:
only in plural, from an unused root meaning to be hard; ebony
KJV Usage:
ebony