Note 19 — Chapter II · THE SILICATES
Reading edition
Vide Hintze, Handbuch der Mineralogie, Leipzig, 1897, ii., 1329.
[20] Hermann, J. pr. Chem. 1843, 30, 194, and 1861, 82, 406.
[21] The announcement of the discovery of Lanthanum by Mosander was made in 1839.
[22] Lanthanite (see list) is an hydrated carbonate, R₂O₃,3CO₂,9H₂O, where R = cerium metals, chiefly Lanthanum.