melanellite
/ˌmɛləˈnɛlʌɪt/Mineralogy rare
noun
A black gelatinous material obtained as the residue when melanchyme is dissolved in alcohol.
Origin
Mid 19th century; earliest use found in James Dana (1813–1895), geologist, zoologist, and teacher. From melan- + -ell (of uncertain and perhaps arbitrary origin) + -ite.