nablock

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English

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Etymology

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(This etymology is missing or incomplete. Please add to it, or discuss it at the Etymology scriptorium.)

Noun

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nablock (plural nablocks)

  1. (mineralogy) A rounded mass, as of flint in chalk, or of ironstone in coal.

References

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  • United States Bureau of Mines, Dictionary of Mining, Mineral, and Related Terms (1996).)