| 释义 |
dreelite Min. Obs. exc. Hist.|ˈdreɪ-, ˈdriːlaɪt|
Also dréelite, dreeite.
[ad. F. dréelite, named by P. A. Dufrénoy (1835, in Ann. chim. phys. LX. 102) after E. de Drée: see -lite and -ite1 2 b.]
The former name of a supposed sulphate of barium and calcium (see quots. 1888, 1950).
1836Amer. Jrnl. Sci. XXX. 380 Dreelite, a new Mineral Species. 1888Jrnl. Chem. Soc. LIV. 33 The mineral termed dreelite by Dufrénoy is shown by the angles of the cleavage planes and by the optical characters to be identical with barytes... Probably..the percentage of calcium sulphate given by Dufrénoy was due to impurities. 1896A. H. Chester Dict. Min., Dreeite, Dreelite. 1950M. H. Hey Index Min. Species 370 Dréelite,..a mixture of baryte, gypsum, etc. |