单词 | pealite |
释义 | pealiten. Mineralogy. rare. A variety of geyserite with an unusually low water content (around 1.5 per cent). ΘΚΠ the world > the earth > minerals > types of mineral > silicates > tectosilicate > [noun] > quartz > amorphous quartz or opal > geyserite geyserite1814 pealite1873 1873 F. M. Endlich Let. to A. C. Peale in 6th Ann. Rep. U.S. Geol. & Geogr. Surv. Territories 154 I wish to distinguish it as a well-defined sub-species of opal, and propose to name it ‘Pealite’, as you were the first to find and collect the mineral. 1911 Encycl. Brit. XX. 121/1 A variety containing an exceptionally small proportion of water, obtained from the Yellowstone Park, was named pealite, after the chemist A. C. Peale. 1993 A. M. Clark Hey's Mineral Index (ed. 3) 531/2 Pealite, var. of siliceous sinter. This entry has been updated (OED Third Edition, September 2005; most recently modified version published online March 2022). < n.1873 |
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