Crystal
A crystal or crystalline solid is a solid material whose constituent atoms, molecules, or ions are arranged in an ordered pattern extending in all three spatial dimensions. In addition to their microscopic structure, large crystals are usually identifiable by their macroscopic geometrical shape, consisting of flat faces with specific, characteristic orientations.
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Famous quotes containing the word crystal:
“Wynken, Blynken, and Nod one night
Sailed off in a wooden shoe—
Sailed on a river of crystal light,
Into a sea of dew.”
—Eugene Field (1850–1895)
“While that the sun with his beams hot
Scorched the fruits in vale and mountain,
Philon the shepherd, late forgot,
Sitting beside a crystal fountain,”
—Unknown. The Unfaithful Shepherdess (l. 1–4)
“But the thing that I saw in your face
No power can disinherit:
No bomb that ever burst
Shatters the crystal spirit.”
—George Orwell (1903–1950)