What does "silicify" mean?

Silicify: To convert into, or to impregnate with, silica, or with the compounds of silicon. The specimens found . . . are completely silicified. Say. Note: The silica may take the form of agate, chalcedony, flint, hornstone, or crystalline quartz.

Additional senses

  1. 2.To become converted into silica, or to be impregnated with silica.

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