350 Palache and Wood — Crystallographjc Study of Millerite. 



Table I— Millerite. 



Hexagonal. Ehombohedral-liemihedral. 



c=0-32745 Z#c=9-51514 tya =0-72341 Z«p =9-33905 a„=5-2895 p =0-2183. (G 2 ) 



33 

 g 



SZ5 



0) 



-u 



C 



& 



a 

 A; 



tf 





Bravais. 



f 



?• 



fo. 



Vo. 



5. 



v. 



X 



Prisms 

 x:y. 



y> 



d 

 = tg p. 



1 







0001 



0°00' 



0°00' 



0°00' 



0°00' 



90° 00' 

 90° 00' 

 90° 00' 

 90° 00' 



0°00' 



30° 00' 



0°00' 

 10° 53'- 



17° 47' 



0° 00' 



60° 00' 



90° 00 r 

 79° 06'- 



72° 13' 



17° 50' 



36° 30'- 



31° 29 r - 



9° 15'- 



43° 59' 

 28° 12'- 















2 

 3 

 4 

 5 



00 



ooO 

 4oo 

 JgLao 



1010 

 1120 

 2130 



7290 



30° 00'- 



0°00' 



10° 53'- 



17° 47' 



90° 00' 

 90° 00' 



90° 00' 

 90° 00' 



20°42'- 

 43° 23'- 

 37° 06' 

 10°42'- 



45° 00'* 



38° 00'- 



90° 00' 



0°00' 



90° 00' 



90° 00' 



10° 42'- 



25° 18' 

 20° 42'- 



5° 24' 



05773 





 0-1924 

 0-3207 



0-1890- 



0-4726 



0-3781 



0-0945 



0-1890- 



0-1890- 



0~-3464~ 

 0-2220 

 0-2361 



0-5671- 

 0-5671- 

 0-7562 

 0-9452 

 1-7014- 

 3-4030 



0-0945 

 0-0630 

 0-2363 

 0-0756 



00 

 00 

 00 

 00 



00 



00 

 00 



oo 



6 



7 

 8 

 9 



P 



e 



s 



1 



5 

 "2 



-2 

 -* 



41 

 -21 



1011 



5052 

 0221 

 0112 



30° 00' 

 30° 00' 

 30° 00' 

 30° 00' 



18° 08' 

 39° 18'- 

 33° 13' 



9° 18' 



44° 29'. 

 28° 37'. 



10° 11' 



20° 05'- 



17° 33' 



5° 20' 



0-3274- 

 0-8186. 

 0-6544 

 0-1634 



0-9823- 

 0-5457- 



0-3781 

 0-9452- 

 0-7562 

 0-1890- 



10 

 11 



2131 

 4153 



10° 53'- 

 19° 06'. 



10° 42'- 

 10° 42'- 



7° 41' 

 9° 25' 



1-0003- 

 0-5775- 



2 



i 

 f 

 9 



2oo 



¥°° 



V-oo 



4150 



9-4-13-0 



31-13-44-0 



19° 06'- 

 12° 31' 

 13° 17' 



90° 00' 

 90° 00' 

 90° 00' 



90° 00' 

 90° 00' 

 90° 00' 



29° 33'- 

 29° 33'- 

 37° 06' 

 43°23'- 

 59° 33'- 

 73° 37'- 



90° 00' 

 90° 00' 

 90° 00' 



44°29'- 



44° 29'- 

 52° 38'- 

 58° 35' 

 71° 15'- 

 80° 22' 



20°54'- 



21° 48'- 

 29° 49' 



21° 27' 



19° 06'- 

 12° 31' 



13° ir 



22° or- 

 22° or- 



24° 39' 

 26° 14' 

 28° 40' 

 29 c 41'- 



5° 03' 



3°21'- 



11° 35' 



4°01'- 



70° 53'- 



77° 28 7 . 

 76° 42'. 

 40° 31' 

 40° 31' 

 46° 15 r 

 49° 57' 

 56° 11' 

 59° 02' 



20° 44'- 

 21° 46'- 

 29° 09' 

 21° 23'- 



00 

 00 



00 



00 



oo 



00 





h 

 t 



X 



3 



I 



m 



n 







q 



w 



3 

 -3 



4 

 5 



-9 

 -18-18 



3031 

 0331 

 4041 

 5051 

 0991 

 0-18-18-1 



30° 00' 

 30° 00' 

 30° 00' 

 30 c 00' 

 30° 00' 

 30° 00' 



48°36'- 



48°36'- 

 56° 31'- 

 62° or- 



73° 37'- 

 81° 38'- 



21° 29' 

 22° 03'- 

 31° 47'' 



21° 48'- 



0-9823- 

 0-9823- 

 1-3098 

 1-6372 

 2-9470 

 5-8940 



0-3820 

 0-4002 

 0-5730 

 0-3929 



1-1343 

 1-1343 

 1-5724 



1-8905 

 3-4030 

 6-8060 





f i. 



-If 



If 



5-2-7-6 



7-4-11-9 

 6174 

 4265 



13° 59' 



8° 57' 

 22° 24'- 

 10° 53'- 



5° 24' 



3°36'- 



13° 18' 



4°19'- 



0-3935- 

 0-4051- 

 0-6198 

 4001- 



Table II shows the character of the combinations observed 

 on the measured crystals, the numbers under each letter indi- 

 cating the number of faces of that form found on the given 

 crystal. 



A 

 1 



2 



3 

 4 



5 

 6 



7 









Table 



II. 





b 



a 



k 



d 



r 



P 



6 



1 



. 



. 



2 



. 



6 





1 



1 



1 



1 



6 



2 



3 



2 



o 



1 



6 



2 



1 



2 



3 



3 



6 



2 



. 



2 



3 





3 



1 





. 



3 



1 



4 







, 



3 



3 







6 



2 





3 





6 









3 



3 



6 



4 



. 



4 



3 



3 



