51 



Crystallization rhombic. 

 a:b:c = 0,6766 : 1 : 0,4499. 



Fig. i; llvaite, type I. 



Fi£ 



llvaite, type I. 



The following forms have been found : 



è{010}, ^{l30}, 6'{l20}, v{340}, M{110}, /г{210}, /"{Oél}, 

 ^{02l}, P{lOl}, w{30l}, o{lll}. 

 Of these forms f{Oi\} is new for the ilvaite. 



Table of measurements 



