nimZj HOCKS AND MINEEALS. 497 



occurs in layers. In the gneiss are pyrites and magnetite ; and 

 graphite at Upernaviks Lange and Omenaks Storoe. Greenstone, 

 granite, or norite, also diabase, graphic granite, granulite, and 

 slates are met with in different parts of the coast and mainland. 



The red quartzose sandstone of Igalliko Jjord and Tunnud- 

 liorbik Fjord is local ; it is pierced by porphyry veins.* 



(The great Trap-formation,f with Brown-coal, has been more 

 fully described by Nordenskjold and others since the date of 

 Eink's Memoir, and the alluvial formations will also be found 

 more fully noticed in the same papers. See above.) 



Rink notices the following minerals and their places of occur- 

 rence : Quartz, siliceous sinter, jasper, olivine, felspar, adularia, 

 opalescent adularia, labradorite, amazon-stone, scapolite, pumice 

 (from Jan Mayen), gieseckite, nephrite, sodalite, eudialite, zeolites, 

 mica:, chlorite, talc, serpentine, hornblende, actinolite, smaragdite, 

 tremolite, augite, asbestos, crocidolile (loc. incog.), clay, clay- 

 slate, barytes, garnet (various), dichroite, epidote, zircon, emery, 

 beryl, tourmaline, saphirine, allanite, gadolinite, fergusonite, 

 calcite, dolomite, fluor, cryolite (with a plan of the locality where 

 it is workedj), tungstate (tungspath), sparry-iron-ore, malachite, 

 apatite, magnetite, specular-iron-ore, brown iron-stone, yellow 

 ochre, titaniferous iron-ore, tin-stone, wolfram, native sulphur, 

 native iron, pyrites, arsenical pyrites, smaltine, copper-pyrites, 

 galena, copper-glance, molybdenite, blende, graphite. {See also 

 Giesecke's list of rocks and minerals above, p. 349.) 



* It is sometimes called " Old Red Sandstone ;" but it may be of Cambrian 

 age. — Editor. 



f Eink gives sketches, — 1. Of Innerit (south side) with its long cliffs of 

 horizontal sandstone, and beds of lignite, capped with great beds of trap ; 

 2. Of a part of the gneiss county, near Proven, overlain by massive trap-rocks 

 on one part, and showing a great, isolated, crater-like hollow in the trap in 

 another. 



% See above, Giesecke, Tayler, &c. 



36122. II 



