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lumachellaLUMACHEL'LA, n. A calcarious stone composed of shells and coral conglutinated, but so far retaining their organization as to exhibit different colors, and so hard as to admit of polish. |
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lumachellaLUMACHEL'LA, n. A calcarious stone composed of shells and coral conglutinated, but so far retaining their organization as to exhibit different colors, and so hard as to admit of polish. |