marlstone

marlstone is defined in Webster's Unabridged Dictionary (1913) with 1 sense. The full text of each entry is reproduced verbatim below.

Definitions

  1. 1.A sandy calcareous straum, containing, or impregnated with, iron, and lying between the upper and lower Lias of England.

Source: Webster's Unabridged Dictionary, 1913 edition (public domain, via GCIDE / Project Gutenberg).

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