SOME CRYSTAL MEASUREMENTS OF CHILLAGITE. 



213 



Crystal No. 5. — The chief forms are c, f and I. The two 

 former are developed symmetrically and determine the 

 shape of the crystal. Ditetragonal pyramids are repre- 

 sented by z and it. 



TABLE V 



"Face. 



Miller 

 Indices. 



Measured (k. 



E<£. 



Measured 

 p. 





Calcul- 

 ated 



Calcul- 

 ated p. 



8<j>. 



8 P . 







1 / 







, 







O 1 



o 1 



C 



001 





1 









i 



- 







- 



6 



c' 



001 





5 





6 



i 



2 



- 







- 







y 



1 19 



-45 



4 



13 



1 



1 

 2 



45° 



13 30 







29 



»» 



)> 



-45 



2 



13 



58 



i 



j, 



„ 







28 



z 



2 2 17 



+44 56 



i 



"2 



14 



26 



1 



)> 



14 16 



4 



10 



1 



1 18 



+45 4 



3 



14 



50 



1 



>> 



15 7 



4 



17 



l 



,, 



-45 



2 



14 



51 



i 



>> 



>> 







16 



i 



,, 



+45 



i 



15 



39 



- 



,, 



„ 







32 



l 



»> 



+45 4 



- 



15 



43 



1 



,, 



«» 



4 



36 



g 



1 16 



-44 21 



1 



19 



32 



1 

 2 



„ 



19 49 



39 



i7 



* f 



1 15 



-45 52 



i 



2 



22 



11 



1 



a 



23 23 



52 



1 12 



f 



1 15 



+44 45 



1 



23 



7 



21 



„ 



)f 



15 



16 



f 



)■> 



-45 



i 



23 



13 



- 



(J 



ft 







10 



f 



,, 



+45 15 



1 

 2 



23 



23 



2 



„ 



jj 



15 







f 



„ 



+44 56 



21 



, 



, 



1 



>> 



» 



4 







f 



,, 



-45 20 



1 



24 



20 



5 



„ 



„ 



20 



57 



D 



6 6 23 



-45 4 



1 



29 



8 



3 



>> 



29 26 



4 



18 



D 



., 



+44 46 



2 ! 



29 



28 



2 



» 



,, 



14 



2 



b 



1 13 



+45 9 



2 



36 



5 



1 



>j 



35 47 



9 



18 



b 



„ 



-44 53 



"? 



36 



12 



5 



Si 



,, 



7 



25 



*z 



2 77 



-16 17 



i 



56 



26 



i 



"2 



15 57 



57 50 



20 



1 24 



7T 



1 33 



+ 18 57 



20 ! 



57 



42 1 



"2 



18 26 



58 11 



31 



29 



