106 



Flache Bay and Sabine Ö From these localities Lenz 

 quotes (page 486, 489) numerous cavities containing quartz 

 crystals. 



Calcedony. 



This mineral, like quartz, has only been found in small 

 quantities in East-Greenland and is not very characteristically 

 developed. It has already been mentioned as occurring in con- 

 junction with quartz. It was found most plentifully in the fol- 

 lowing places: 



Кар Dalton. On Depot mountain, a few cavities (up to 

 8 cm.) were found filled with white and grey agate. In some 

 cases the cavity is quite filled in with quartz. 



Mount Henry; east side. A few quite small cavities 

 in a grey dolerite are filled with finely banded bluish or greyish 

 agate. 



Turner Sund. The specimen shows^'a bluish-grey, very 

 translucent calcedony, forming a layer on the walls of a cavity 

 of about 2 centimetres thickness. This is coated over on the 

 inner side with quartz crystals. 



Stewart Ö This is a smaller fragment of blue trans- 

 lucent calcedony, with small quantities of white opal. 



Кар Brewster. Jameson quotes from this locality : botry- 

 oidal calcedony, ordinary calcedony, agate and several other 

 forms of quartz. 



Sabine Ö and Pendulum Ö. Lenz mentions as occur- 

 ring here ordinary calcedony and "blutjaspis". 



Calcite. 



Calcite has been found in most of the localities in East- 

 Greenland where zeolites occur, but generally in rather small 

 quantities. It is sometimes found in the form of crystals, 

 which are usually small and insignificant, sometimes it occurs 

 as a granular mass or, again, it may be an individual crystal 



