Use "incrustation" in a sentence

1. I have settled down, very comfortably I must say, to the preliminary petrifaction of middle age, and middle age, I begin to perceive, is a blessed period in which we walk along mellowly, down pleasant slopes, with nothing gusty and fierce able to pierce our incrustation, no inward volcanoes able to upset the surrounding rockiness, nothing to distract our attention from the mild serenity of the landscape, the little flowers by the way, the beauty of the reddening leaves, the calm and sunlit sky

2. Then, again, if you fix your eye upon this strange, crested, comb-like incrustation on the top of the mass—this green, barnacled thing, which the Greenlanders call the "crown," and the Southern fishers the "bonnet" of the Right Whale; fixing your eyes solely on this, you would take the head for the trunk of some huge oak, with a bird's nest in its crotch

3. When first taken from the earth, and exposed to the air, it is covered with an incrustation of a dark reddish-brown colour, that crumbles easily between the fingers, and is generally from one inch to a foot in thickness

4. This incrustation, however, hardens on a long exposure to the air

5. This led me to think that the incrustation was owing to the decomposition of the limestone, which was produced by the sulphuret of iron, intimately disseminated through the rock, which would also explain the singular circumstance of its striking fire

6. At Salem and some other places an incrustation of salt was perceived on the windows, and the fruit in several gardens had a perceptible taste of salt on their surface