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:
“Madame, ye been alle beautee shrine
As fer as cercled is the mapemounde:
For as the crystal glorious ye shine,
And like ruby been youre cheekes rounde.”
—Geoffrey Chaucer (1340?–1400)
“Opinionated writing is always the most difficult ... simply because it involves retaining in the cold morning-after crystal of the printed word the burning flow of molten feeling.”
—Gavin Lyall (b. 1932)
“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)