Kinahan — On Granite and Metamorphic Rocks. 235 



Finford, Fanad- within-the- Waters. — Granite ; grey, pink, and 

 shaded ; even-grained ; very easily worked ; cuts and polishes well ; 

 used in some of the dressed work at Mulray, or Manorvaughan 

 House. 



Arraheernabin, on the north coast, near Fanad Lighthouse. — 

 Granite; bright grey; even-grained; compact; works and dresses 

 easily and well. Used in part of the dressed work in the new 

 Lighthouse, Fanad, and at the Portsalon Pier, Ballynastocker Bay. 

 A very general characteristic of the granite to the south-west of the 

 last, in the tract between the road and the sea, is a natural and easy 

 splitting up of the rocks into long rectangular pieces ; and it may 

 be suggested that these might be utilized in the construction of 

 cheap and durable fences, similar to those in use in the Co. Carlow. 



At the present time (1888) the Earl of Leitrim is exhibiting at 

 the Olympia Exhibition, London, cut and polished granites from 

 the neighbourhood of Mulroy Bay. It is proposed to form a com- 

 pany to work them. According to Mr. Manning the stones have 

 been procured from the following places: — 



Doaghmore. — Bright-grey and pink ; even-grained. The polished 

 specimens from these quarries were from surface-stones. The quar- 

 ries are now being properly opened up, to get out a better 

 quality. 



Melmore, Rinmore, Ballyhunan, and Arraheernabin. — Principally 

 grey granite, of a good quality ; suitable for monumental and cut- 

 stone purposes. " Specimens of green and red granite are found 

 at Einmore and Arraheernabin ; but as yet no quarry has been 

 opened on them, and what they may be suitable for is not known." 



Tory Island, at the Lighthouse. — Grey granite, very similar to 

 the above at Arraheernabin. Raised in the excavation for the 

 gasometer, and used in the structure. 



Dunaffi, Inishowen. — A granite very similar to that of Doagh- 

 more, at present not worked. 



The Metamorphic granites are often good stones for building 

 purposes ; but many are obliquely foliated (query, metamorphosed 

 quartzytes (?) ) and these are not so ; some quartzose varieties of the 

 latter, however, are very suitable for road-mending, and are used 

 for that purpose. 



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