200 



while the generally adopted pectolite formula 



does not agree very well with the analysis. 



Both in composition and crystallographic properties the 

 schizolite differs distinctly from the pectolite , so it is un- 

 doubtedly correct to classify it as a special mineral. 



Occurrence. The schizohte from Tutop Agdlerkofia appears 

 as mentioned above in a mass of grained albite, which also 

 contains sphalerite , aegyrite and steenstrupite. The columns 

 are on an average a few centimeters in length. 



The one column, which was found in the material from 

 Kangerdluarsuk, is imbedded in a pegmatite, which also con- 

 tains eudialyte, arfvedsonite, aegyrite, white feldspar, steen- 

 strupite and several other minerals. 



Under the provisional name of «cubelike crystals» G. Flink 

 (1. с. pag. 245) mentions a mineral found by him in the 

 pegmatite at Nauj akasik. On examination it was found to 

 have so much similarity to the schizolite, that it must un- 

 doubtedly be considered as a variety of the same. It is there- 

 fore indicated in the following as «schizolite variety A.» Be- 

 sides this the pegmatite contains arfvedsonite, white feldspar, 

 eudialyte, nephehte, aegyrite and steenstrupite, exactly as the 

 above mentioned pegmatite from Kangerdluarsuk. 



The mineral appears partly as groups of very small and 

 indistinct cubelike crystals, partly as plates, in both cases 

 protruding freely into cavities of the pegmatite. In a few 

 cases the plates are closely connected with the nephelile 

 masses, so that the limit between them is difficult to decide. 

 The color is brown with greasy to vitreous luster. In thin 

 pieces cleaved off the mineral is transparent; the plates are 



