calcedon definition

  • noun:
    • A foul vein, like chalcedony, in a few valuable stones.
    • A foul vein, like chalcedony, in a few valuable rocks.
    • In jewelry, a foul vein, like chalcedony, in some valuable stones. In addition spelled chalcedon.
    • A foul vein, like chalcedony, in certain precious rocks.
    • A foul vein, like chalcedony, in some precious rocks.
    • In precious jewelry, a foul vein, like chalcedony, in a few precious rocks. Additionally spelled chalcedon.
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