Crystal

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:

    I’m headed for a land that’s far away
    Beside the crystal fountains.
    So come with me, we’ll go and see
    The Big Rock Candy Mountains.
    —Unknown. The Big Rock Candy Mountains (l. 5–8)

    In a few days I’ll have lived one score and three days in this vale of tears. On I plod—always bored, often drunk, doing no penance for my faults—rather do I become more tolerant of myself from day to day, hardening my crystal heart with blasphemous humor and shunning only toothpicks, pathos, and poverty as being the three unforgivable things in life.
    F. Scott Fitzgerald (1896–1940)

    A crystal of breath,
    your irreversible
    witness.
    Paul Celan [Paul Antschel] (1920–1970)