Kinahan— On Irish Metal Mining. 



249 



ARSENIC. 



[This mineral is very often present in small quantities associated with sulphur -ore 

 (pyrites), and sometimes with lead. At Cronebane and Connary, Co. Wicklow 

 (sheet 35), it occurs as arsenopyrite, locally called "Jack Martin," with the sulphur- 

 ore, and in the Kilmacooite (see Lead and Zinc) ; at Lackamore, Co. Tipperary 

 (sheet 38), it occurs as arsennopyrite associated with copper ore ; but in some places it 

 occurs independently, as on the east shore of Adrigole Bay, Co. Cork (sheet 118), and 

 at Gubnabinniaboy, near Molranny, Co. Mayo (sheets 65 and 75). In some of the 

 mines of south-west Cork, as at Lissareniig, near Bantry (see Lead List), it occurs in 

 considerable quantities.] 



COBALT. 



[Cobalt in quantity has only been recorded as occurring at Muckross, Co. Kerry, where, 

 unfortunately, most of the ore (erythrite, or arsenate of Cobalt) was thrown into the 

 lake before its value was discovered. — (Kane.)'] 



