tronan.

/ˈtrəʊnə/

Etymology: < Swedish trona (1773), apparently < Arabic ṭrōn , shortened form of naṭrūn , natron n., < Greek νίτρον soda (Dozy).

Mineralogy.

Native hydrous sodium carbonate, found in various places in North Africa and America.

ΘΚΠ

the world > the earth > minerals > types of mineral > carbonates > [noun] > trona

trona1799

urao1839

thermonatrite1859

1799 R. Kirwan Geol. Ess. 497 The trona was not deprived of its water of crystallization.

1850 D. T. Ansted Elem. Course Geol. §371 Trona, Urao, Hydrous sesqui-carbonate of soda.

1866 P. H. Lawrence tr. B. von Cotta Rocks Classified i. i. 59 Trona..forms a crust on the ground on mountain slopes..in Peru.

This entry has not yet been fully updated (first published 1915; most recently modified version published online December 2019).

单词	trona
释义	tronan. /ˈtrəʊnə/ Etymology: < Swedish trona (1773), apparently < Arabic ṭrōn , shortened form of naṭrūn , natron n., < Greek νίτρον soda (Dozy). Mineralogy. Native hydrous sodium carbonate, found in various places in North Africa and America. ΘΚΠ the world > the earth > minerals > types of mineral > carbonates > [noun] > trona trona1799 urao1839 thermonatrite1859 1799 R. Kirwan Geol. Ess. 497 The trona was not deprived of its water of crystallization. 1850 D. T. Ansted Elem. Course Geol. §371 Trona, Urao, Hydrous sesqui-carbonate of soda. 1866 P. H. Lawrence tr. B. von Cotta Rocks Classified i. i. 59 Trona..forms a crust on the ground on mountain slopes..in Peru. This entry has not yet been fully updated (first published 1915; most recently modified version published online December 2019). < n.1799
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