EARTHY PHOSPHORITE. 217 Second Subspecies. Earthy Phosphorite. Erdiger Phosphorit, Karsten. Erdiger Phosphorit, Haus. s. 123. Id. Karsten, Tabel. s. 52.—* Chaux phosphatec pulverulcnte, Hauy, Tabl. p. 8.—Erdiger Phosphorit, Lenz, b. ii. s. 802. External Characters. Its colours are greyish-white, greenish-white, and pale greenish-grey. It consists of dull dusty particles, which are partly loose, partly cohering, and which soil slightly, and feel meagre and rough. Chemical Characters. It phosphoresces when laid on glowing coals. Constituent Parts. Earthy Phoiphnrite from Marmaroscb. Lime, ... 47.00 Phosphoric Acid, 32.25 Fluoric Acid, 2 50 Silica, - 0.50 Oxide of Iron, '0.75 Water, 1.00 Mixture of Quartz and Loam, 11.50 95.50 Klaproth, Beit. b. iv. s. 373. Geognostic
