| 单词 |
needlestone |
| 释义 |
ˈneedlestone Min. [ad. G. nadelstein.] A name formerly given to various minerals having needle-like crystals, as natrolite and scolecite.
1820Brooke in Annals Philos. XVI. 193, I shall call the Auvergne variety, Mesotype; that from Iceland and Ferro, Needlestone. 1836T. Thomson Min., Geol., etc. I. 318 Most of the needlestones found in the amygdaloidal rocks in Scotland belong to it likewise. 1843J. E. Portlock Geol. 220 Implanted tufts of radiating crystals of needle-stone frequently occur. 1885Ramsay Mineral. (ed. 3) 296. |

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