L'S 



som tildels sees i Olivinkrystallerne. Det mørke med kors- 



vise, hvide Linjer, som sees indtrængende i Olivinen er urent, 



slaggeagtigt Glas, det sorte Mineral i Omgivelsen er Jern- 

 ertskorn. 



(magniliing 360 diameters), will supplement the verbal descrip- 

 tion. To avoid complexity in the drawing, I have left out 

 the fissures and the grains of iron ore that are seen in some 

 of the crystals of olivine. The dark substance, with intersecting 

 white lines, seen piercing the olivine, is discoloured, slaggy 

 glass, the black particles lying around, grains of iron ore. 



Till tffTÆ at X*.' <.'!» 







t llivinkrystal i Basalt. — A Crystal of Olivine in Basalt, magnified. 



Den omgivende Bergart er paafaldende finkornet indved Kry. 

 stallen og trænger i sækformede Forgreninger ind i denne. 



The surrounding mek exhibits a remarkably tin.' granulation 

 in immediate proximity to the crystals. which it pierces in sac-like 

 ramifications. 





■ i 



Olivinkrystal i Basalt. — A Crystal of Olivine in Basalt, magnified. 



Urent Olas indtrængende fra den omgivende temmelig fmkor- 

 nede Bergart. 



Discoloured glass is seen piercing the crystal from the sur- 

 rounding rock, which has a fine granulation. 



M*& 



■ 





JW 



tSlf 





Olivinkrystal i Basalt, — A Crystal of Olivine in Basalt, magnified. 



Den omgivende Bergart er finkornet. Øverst paa Tegningen 

 9ees Basalt af den herskende Kornighedsgrad. Qrenl Glas trænger 

 ind i Krystallen fra Omgivelsen. 



The surrounding base is finely granulated. — At thetopofthe 

 figure is seen basall of the dominanl degree of granulation. Dis- 

 coloured glass pierces the crystal from the rock surrounding it. 



