e/Walnut ink

Information
has gloss	eng: Walnut ink is an ink made from the green husk surrounding the nut of walnuts. It may be liquid or made of crystals that are mixed with water before use. It can be used to produce stains and darken paper to make it look older.
lexicalization	eng: Walnut ink
instance of	(noun) a liquid used for printing or writing or drawing ink