thenardite Min.
(θɛˈnɑːdaɪt, tɛ-)
[Named in honour of L. J. Thénard, French chemist: see -ite1.]
Anhydrous sodium sulphate occurring in white or brown translucent crystals.
| 1842 Penny Cycl. XXIV. 310/2 Thenardite—(Anhydrous Sulphate of Soda)—occurs crystallized... It is used in the preparation of carbonate of soda. 1868 Dana Min. 616 The water exudes during winter from the bottom of a basin, and becoming concentrated in the summer season, deposits crystals of thenardite. |