1. Graphite. 



The only chemical element that has been found as a 

 mineral on Narsarsuk, is carbon in the form of graphite. It 

 occurs here in two different forms, partly as (apparently) com- 

 pact masses, partly as isolated crystalline plates. 



The compact masses of graphite Vere found at the locality 

 ]No. 2 in loose specimens consisting of grey feldspar and 

 ægirine ; both in large, irregular individuals, the graphite oc- 

 curring in extended layers up to ]•=" in thickness. The 

 colour of the graphite is lead-grey, and the mineral is soft 

 to the touch and easily soils the fingers. On closer inspection 

 the compact portions are found to consist entirely of lamellae 

 matted together, partly aggregated quite irregularly, and partly 

 arranged in parallel position or radially round enclosed grains 

 of feldspar or ægirine. 



At the locaUty No. 1 the graphite occurs associated with 

 elpidite and the new mineral tainioUte. It is in this place 

 developed as minute crystalline plates implanted on crystals 

 of the accompanying minerals. Under the microscope these 

 tables present a somewhat imperfect hexagonal outline. They 

 are thickest in the centre and thin out lenticularly towards 

 the edges. Distinct crystalline faces have not been observed. 



The mode of occurrence of the graphite indicates that it 

 must be one of the most recently formed minerals. 



2. Galenite. 



Only two sulphides have been found on Narsarsuk, namely 

 galenite and sphalerite, both of them very sparingly. Galenite 



