ART. 21 MIARGYRITE SILVER ORE FROM CALIFORNIA — SHANNON 



Measuremcnls of miargyrite crystal, Figure 2 — Continued 



Form 



No. Letter 



6 



7 



8 

 9 



10 



11 

 12 



13 



14 

 15 

 16 



17 

 18 

 19 



X 



X 



s 

 s 



new? 



d 

 d 



Symbol 



Gdt. Miller 



+ 2l 



4^ 



+ 21 

 + 21 



+!■ 



+ 31 

 + 31 



+ 61 

 + 61 



+ 



n 



42 



Ao 



21 

 33 



21 

 33 



122 



122 



211 

 211 



722 



311 

 311 



522 



611 

 611 

 124 



105 

 213 

 213 



Quality description 



Excellent. 



-do. 



.do. 



Medium. 

 Excellent. 

 do... 



do- 

 Good __ 



.do. 



Measured 



21 32 



49 05 



47 16 

 47 45 



Poor 



Verj- poor. 



V. p. stri_. 

 P. blurred. 

 do.... 



90 09 



Calculated 



76 43 



76 42 

 76 43 



30 35 48 19 



30 17 ! 48 19 



/ / 



71 53 I 19 48 



19 48 



36 03 

 36 03 



50 59 



46 49 

 46 49 



41 53 



64 18 

 64 18 

 15 19 



90 00 

 27 25 

 27 25 



16 37 



/ 



72 05 



72 05 



74 28 



74 28 



77 48 



76 46 

 76 46 



75 39 



81 32 



81 32 

 56 27 



19 13 

 47 32 

 "47 "32 



The only face which can not be reasonably referred to an established 

 form is: 



No. 10. Measured vj = 49 05 p = 7Q 43 



722 calculated 50 59 77 48 



Difference A^ 1 54 A= 1 05 



