In Jack Vance's Lyonesse series of novels, "halfling" is a generic term for beings such as fairies, trolls and ogres, who are composed of both magical and earthly substances.
There are many salts and also stones of a crystalline figure which owe their origin in like manner to some earthly substance being dissolved in water under the influence of agencies little understood.
The alchemists viewed all earthly substances as signatures of the spiritual, conceiving a continuum that extended from the manifest to the ineffable.
As in a nightmare of delirium Kane saw Hassim swaying like a reed in the wind, lapped about by a gigantic pulsing red Thing that had neither shape nor earthly substance.
He sat in the caned chair with a full sense of his weight, his earthly substance.
Then their priest, a strange gaunt man of unknown race, plunged into the wilderness, and when he returned he bore a knife that was of no earthly substance.
Geophagia is a form of pica in which the person consumes earthly substances such as clay, and is particularly prevalent to augment a mineral-deficient diet.
The sun was beginning to go down, and a change had come over the mountains, as if they were robbed of their earthly substance, and composed merely of intense blue mist.
The nature which this material assumes as "ego organization" is, to begin with, that form of earthly substance in which it is farthest estranged from its earthly physical character.
Now it is to the earth that every earthly substance, or earthly process, owes its forces of the kind that radiate outward; it has these forces in common with the earth.