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单词 throstle-breast
释义

> as lemmas

throstle-breast
throstle-breast n. Obsolete (among miners and quarry workers) any of several kinds of mineral with a spotted or mottled appearance.
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the world > the earth > minerals > ore > [noun] > others
throstle-breast1747
molybdenite1796
1747 W. Hooson Miners Dict. sig. Vv Throstlebrest, a kind of Ore or rather Knockings, mixt with a brown Tuft.
1757 T. Birch Hist. Royal Soc. IV. 239 Mr. Hooke shewed [at a meeting in 1683] a sort of glistering ore, which, Dr. Lister said, was called throstle-breast; and that it yielded its silver easily, but that the quantity was not great.
1811 W. Watson Delineation Strata of Derbyshire 52 Galena, when of leafy lamellar fracture; Provincially Throstle-breast, or Dice Ore.
1913 A. Greenwell & J. V. Elsden Pract. Stone Quarrying v. 167 The chert bed proper is a layer 8 ft. thick consisting of pure chert, known as ‘throstlebreast’ from its mottled appearance.
extracted from throstlen.
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更新时间:2025/3/4 17:52:41