490 



Az ikositetraeder és triakisoktaeder 



ubs. calc. 



(211). (100) =: 35°15' 35°15'51" 



(211).(111) = 19°28' 19°28'16" 



(221). (100) = 48°10' 48°11'22" 



(221). (111) = 15°45' 15°47'35" 



