The galbanum and leather on a musky base makes the scent very difficult to classify. Galbanum is frequently adulterated with pine oil. Galbanum resin has a very intense green scent accompanied by a turpentine odor. Galbanum absolute is solvent-extracted from the gum oleo-resin of the plant. Galbanum is generally considered to be "Ferula galbaniflua". Galbanum oil is steam-distilled to yield a Clear, pale yellow or olive mobile liquid. Galbanum was highly treasured as a sacred substance by the ancient Egyptians.