96 FLORIDA GEOLOGICAL SURVEY SIXTH ANNUAL REPORT. 



The grade of rock produced in the Safaga mines by the Egyptian 

 Phosphate Company admits a guarantee of from 65 to ^2 per cent 

 of tricalcium phosphate; calcium carbonate 8 to 12 per cent; iron 

 and ahiminum 2 per cent. 



CONTINENTAL EUROPE. 

 FRANCE. 



France has long Ijeen a phosphate producing country and, al- 

 though the production has never been large as compared with some 

 other countries, yet deposits are known and worked at many and 

 widely separated localities. One of the principal centers of pro- 

 duction is that of Pas de Calais, where the phosphate occurs as 

 mamillary masses and nodules in the Cretaceous strata, varying in 

 grade, but averaging about 50 per cent tribasic phosphate of lime. 

 The phosphates at Beauval in the Somme are exceptional in their 

 manner of occurrence, being found as sand pockets in the surface 

 of the rock. Originally this sand, analyzing upon drying 75 to 

 80 per cent tricalcium phosphate, was used in mortar, its phosphatic 

 nature not then being known. The production of phosphate and 

 phosphatic chalk in France during 1911, the latest date for which 

 statistics are available, amounted to about 380,000 tons. 



BELGIUM. 



Belgium has extensive deposits of phosphate rocks, which, how- 

 ever, are of rather low grade. The rock found around Liege and 

 Mons, near the French border, contains about 50 per cent trical- 

 cium phosphate. In the vicinity of Vaudour somewhat richer phos- 

 phates are found grading about 60 per cent tricalcium phosphate. 

 The production from Belgium in 191 1 was 196,780 tons. 



RUSSIA. 



Phosphates are known to exist over a wide extent of territory 

 in Russia, deposits of commercial value being found in southern 

 central and northern European Russia. The deposits of south- 

 ern Russia are found near the Austrian frontier in Bessarabia and 

 Podolia. These phosphates lie in schists and are mined chiefly by 

 underground mining. The Podolia phosphate grades about 75.3 

 per cent tricalcium phosphate. Extensive phosphate deposits, as 

 yet but little developed, are found in central Russia. Mining has 



