24 
DEPOSITS OF PHOSPHATE OF LIME. 
[BULL. 46. 
bee. It consists of a belt running from near the Ottawa River, on the 
south, for over sixty miles in a northerly direction, through Bucking- 
ham, Portland, Templeton, Wakefield, Denholm, Bowman, Hincks, and 
other townships. The belt probably stretches still farther to the north, 
but the country in that direction has been but little explored, and is 
scarcely known, except to trappers and Indians. The belt averages in 
width from fifteen to twenty-five miles. 
Fig. 2. Apatite in the Bonanza pit, Union mine, Portland, Ottawa Connty, Quebec, Canada. A, apa- 
tite; B, mica; C, white feldspar; D, pink and white feldspar, mica, and pyroxene. Scale: 1 inch — 
16 feet. f 
The second phosphate district is in Ontario, principally in the counties 
of Leeds, Lanark, Frontenac, Addington, and Renfrew. This district 
is much larger than that of Quebec. But the apatite is much more 
scattered, and, though special deposits are in some places much more 
continuous than those of Quebec, the mineral has not yet been discov- 
ered in such large pockets" as occur in the latter district. The belt 
which contains the deposits runs from about fifteen miles north of the 
St. Lawrence River in a northerly direction to the Ottawa River, a dis- 
tance of about one hundred miles. It varies from fifty to seventy-five 
miles in breadth. 
The above-mentioned districts are the regions where apatite has been 
found most plentifully, but it also occurs in other places ; though, so 
far as has been discovered, in much smaller quantities. 1 
The apatite occurs in the upper part of the Lower Laurentian forma- 
tion, the horizon being characterized by large quantities of pyroxene 
rock. The principal phosphate-bearing band consists of quartzites, 
gneisses, schists, feldspar, and pyroxenic and calcareous rocks, having 
an aggregate thickness, according to Veunor, of twenty-six hundred to 
1 Lately it has been found that apatite is very generally distributed in Pontiac 
County, Quebec. 
(498) 
