Tin-mining.

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  1.  (See quot.)

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1674.  Ray, Collect. Words, Prepar. Tin, 121. The dross and earth … is carried all along the trough to a pit or vessel, into which the trough delivers it, called a loob.

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  2.  pl. (See quots.)

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1778.  Pryce, Min. Cornub., 324. Loobs, tin slime or sludge of the after leavings, or leavings slime.

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1860.  Eng. & For. Mining Gloss. (Cornwall terms), Loobs, slime containing ore.

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