Emily Dickinson Lexicon
Definition for WHET'STONE-SLATE, or WHET'-SLATE
WHET'STONE-SLATE, or WHET'-SLATE, n.
Novaculite or coticular shist, a variety of slate used for sharpening instruments of iron. The light green colored variety from the Levant is the most valuable. It should be kept in a damp place, that it may not become too dry and hard.
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