Ampelite
Encyclopedia
Ampelite, in natural history, is a black, bituminous substance that dissolves in oil
; perhaps cannel coal
. Historically, it was used to blacken eyebrows and hair.
Oil
An oil is any substance that is liquid at ambient temperatures and does not mix with water but may mix with other oils and organic solvents. This general definition includes vegetable oils, volatile essential oils, petrochemical oils, and synthetic oils....
; perhaps cannel coal
Cannel coal
Cannel coal, also known as candle coal, is a type of coal, also classified as terrestrial type oil shale, with a large amount of hydrogen, which burns easily with a bright light and leaves little ash....
. Historically, it was used to blacken eyebrows and hair.