190 SOME NOVA SCOTIAX ILLUSTRATIONS 



change, the effect in their case being usually confined to greatly 

 increased hardness and compactness, or to the development in 

 the mass of mica scales and metallic sulphurets ; but among the 

 finer beds, now mica schists, the alteration is often much more 

 extreme, the mica being not only far more conspicuous, but 

 accompanied, often over large areas, by multitudes of staurolites 

 and small garnets, as well as andalusites. The staurolites are 

 often quite perfect and readily separable from the matrix, but 

 the andalusites are rarely well formed or differentiated, shading 

 into the associated rock, while they are themselves indefinitely 

 penetrated by mica, garnet, and staurolite crystals. The best 

 localities for the collection of staurolites are the vicinity of 

 Jordan Falls, arid the west side of Shelburne Harbor, in the 

 village of Carleton, while both these and andalusites may be 

 found in large numbers about Baccaro, on St. Anne's Point, in 

 Pubnico, and about Brazil Lake and Lake Annis in Yarmouth 

 County. The garnets observed upon the coast, though numerous 

 and usually quite clear, were all small, while those of the interior, 

 along the borders of the granite, while considerably larger, were 

 generally dull. A somewhat remarkable example of this latter 

 class is to be seen in the fields half a mile east of Brazil Station 

 on the Dominion Atlantic R. R. in Yarmouth, the schistose rock 

 having its surface thickly covered with projecting crystals of this 

 mineral from the size of a pea up to a diameter of an inch or 

 more. Rocks of very similar character occur about the shores 

 of Lake George, and again upon the coast at Chegoggin Point. 

 Near an old quartz mill in this vicinity is an 18 foot belt of 

 garnetiferous schist, having cross veins of pure garnets mingled 

 with hornblende and menacoanite. Along the same belt of 

 me tarn orphic strata (between Yarmouth Harbor and Lake 

 Wentworth) the rocks frequently contain scattered sheafs of 

 hornblende, and in places become a nearly pure hornblende rock. 



Quite a different type of metamorphisin is to be found along 

 the northern side of the great central granite tract in Digby and 

 Annapolis Counties. Here the stratified rocks which adjoin the 

 granite are of much more recent origin than those described 



