224 GEOLOGY OF CAPE BRETON.—GILPIN. 
out, and on assay were found to yield a small per centage of 
lead, a trace of gold, and 2°879 ounces of silver to the ton. 
In the Port Hood coal measures a small vein of galena was 
noticed in a sandstone bed between two coal seams. A similar 
case was noticed some years ago at the Joggins coal mines, in 
Nova Scotia, where, if I remember correctly, the lead ore was 
noticed in the coal bed where cut by a fault. 
Copper.—In Cape Breton this ore occurs principally as pyrites. 
The conglomerates frequently show it in small quantities near 
their junction with older rocks. In the vicinity of Whycogomah 
it occurs in diorite dykes, cutting the lower carboniferous 
measures, and its occurrence at Port Bevis, under similar con- 
ditions, has been noticed. 
At Cheticamp, a number of years ago, a good deal of money 
was spent in prospecting for Copper. The ores were green and 
blue carbonate of copper, gray and yellow sulphides, and chryso- 
colla. The deposits are in the vicinity of lower carboniferous 
traps and sandstones, but probably resemble in economic value 
ores frequently met in rocks of the same age in Pictou, Colchester 
and Cumberland Counties. Copper ore occurs unser similar 
conditions at Jerome’s Point, where native copper is found in 
trap. Copper pyrites is frequently met from this point as far.as 
Cape North, and so wide spread are the traces of the ores of this 
metal in this part of Inverness County, that it may safely be 
predicted that workable deposits will be found either in the Pre- 
Cambrian rocks, or as derivative ore bodies in the adjoining car- 
boniferous strata. 
e 
Celestite—This mineral, the Sulphate of Strontium, is reported 
by Mr. Fletcher as occurring on the right bank of the Sydney 
River, about a mile and a half above the Coxheath Bridge, as a 
bed about a foot thick, of a bluish grey color, associated with 
limestone. This mineral is used largely for the crimson color of 
fireworks, and lately has been introduced in certain processes of 
sugar refining. The principal source of supply is, I believe, Italy, 
whence about 5000 tons are annually exported to England and 
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