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Webster 1913 Edition

Limestone

Lime′stoneˊ

(līm′stōnˊ)
,
Noun.
A rock consisting chiefly of calcium carbonate or carbonate of lime. It sometimes contains also magnesium carbonate, and is then called magnesian or dolomitic limestone. Crystalline limestone is called marble.

Webster 1828 Edition

Limestone

LI'MESTONE

,
Noun.
Stone of which lime is made by the expulsion of its carbonic acid, or fixed air. It is called carbonate of lime. Of this there are several species.

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