单词 | needle-tin |
释义 | > as lemmasneedle-tin needle-tin n. (also needle-tin ore) [after German Nadelzinnerz (1877 or earlier)] now historical a variety of cassiterite occurring as long prismatic crystals. ΘΚΠ the world > matter > chemistry > crystallography (general) > crystal (general) > crystal habit > [noun] > needle needle1676 spiculum1746 spicula1747 needle-tin1882 1882 Mineral. Mag. 4 7 F. Becke regards Wood Tin as an extreme form of the well known acicular crystals sometimes spoken of as ‘Needle Tin’. 1944 C. Palache et al. Dana's Syst. Mineral. (ed. 7) I. 576 at Cassiterite The acute pyramidal and long prismatic habits have been called sparable tin..and needle-tin ore (Nadelzinnerz Germ.). 1993 A. M. Clark Hey's Mineral Index (ed. 3) 488/1 Needle tin ore, var. of cassiterite. < as lemmas |
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