fissure vein

noun

Definition of fissure vein

: a crack in the earth's crust filled with minerals deposited from aqueous solution including sometimes such adjacent rock as has been sufficiently mineralized to be mined as ore

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Cite this Entry

“Fissure vein.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/fissure%20vein. Accessed 4 Aug. 2020.

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