单词 | urao |
释义 | uraon. Mineralogy. = trona n. ΘΚΠ the world > the earth > minerals > types of mineral > carbonates > [noun] > trona trona1799 urao1839 thermonatrite1859 1839 A. Ure Dict. Arts 1263 Urao, is the native name of a sesquicarbonate of soda found at the bottom of certain lakes in Mexico. 1863 H. Watts Dict. Chem. I. 796 Tetrasodic Carbonate or Sesquicarbonate of Sodium..occurs..as urao at the bottom of a lake in Maracaibo, South America. 1889 Amer. Naturalist 23 814 The composition of urao, a mineral..from Venezuela. This entry has not yet been fully updated (first published 1926; most recently modified version published online December 2020). < n.1839 |
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