OF CENTRAL CANADA PART V. 



307 



The auriferous mispickel of the district occurs in the form of veins, 

 running mostly parallel with the stratification, in the township of 

 Marmora. The mispickel (see page 77) is essentially in a quartz 

 veinstone in which " free gold " is often visible. Bitter spar or 

 dolomite usually accompanies the quartz; and iron pyrites, brown and 

 blackish-green mica and other minerals are also commonly present. 

 The veins have a general N.N.W. and S.S.E. direction, and dip 

 westerly at an average angle of 30 or 35. A layer of talcose slate 

 forms in most cases one or both of the walls. The annexed sketch- 

 section, fig. 244, shews the general character of the ground in the 



.C R 



WEST. FIG. 244. EAST 



more southern portions of the eighth, ninth, tenth, and eleventh 

 concessions of the township. H, indicates the syenitic Huckleberry 

 Hills ; R M, the River Moira, here reduced to a comparatively small 

 stream ; C R, Crow River, with the site of Marmora village adjoining; 

 L, the inclined Laurentian beds ; and S, the overlying and near-ly 

 horizontal Lower Silurian strata. The shaded portion of the Laur- 

 entian rocks indicates the principal site of the gold-bearing veins. 

 The amount of gold carried by the mispickel of these veins, varies 

 from one or two to seven or eight ounces in the ton ; and the average 

 yield of the undressed veinstuff, generally, is rarely less, and com- 

 monly higher, than from fifteen to eighteen dwts. per ton of ore. 

 The gold averages in fineness about 23 carats, very little silver being 

 combined with it. The large amount of arsenic in the mispickel 

 also adds to the value of the ore. 



Galena veins* occur within the district in the townships of Lough- 

 borough, Bedford, Lansdowne, Ramsey, Galway, Somerville, Tudor, 

 Marmora, Lake, Limerick, and elsewhere ; but hitherto these veins 

 have not been successfully worked. 



Apatite the " phosphate" of commerce occurs in North Burgess 

 and North Elmsley, and at other localities in the country between 



A few borings put down just beyond the supposed limits of the deposit, and in the central 

 part of the latter, will prove its extent and depth; and the cores brought up by the drill will 

 show the character of the deposit throughout its mass. 



