272 MINERALS FOR THE PARIS EXHIBITION. GILPIN. 



able gold values, and there appears to be some difficulty found 

 in extracting it. Assays show the following values : 



I. II. 



Antimony 60.29 p. c. 43.73 p. c. 



Gold 2.06 oz. per ton 2,000 Ibs. 2.48 oz. 



Silver .10" 



Fire clays occur at several places in the coal measures, and 

 other horizons of the carboniferous, and are apparently valuable. 

 The manufactnre of fire brick was carried on for some time at 

 Stellarton, but is, I believe, at present discontinued. 



Allied economically to the fire clay is a sample of felsite from 

 Coxheath, Cape Breton Co , which has been proven experiment- 

 ally to make a good fire brick when mixed with about one per 

 cent, of lime. 



Samples of coal oil shale and their products of parafine, wax, 

 illuminating and lubricating oil are shown from East Bay, 

 Cape Breton Co., where a plant is being erected to treat them on 

 a large scale. These shales occur in lower carboniferous con- 

 glomerates and sandstones near their junction with laurentian 

 measures. 



