montaanvaha, ligniitvaha
a hard, brittle wax extracted from lignite or peat by means of organic solvents and distillation, consisting mainly of saturated fatty acids of high molecular weight and their esters, and used in making polishes, varnishes, etc., and as an electrical insulator, vahajas mustjaspruun bituumen, pruunsöe töötlemisel saadav kõva ja väheplastne mass
