THE MINERALS OF IDAHO 327 



Measurements of epidote crystal, Figure 94, (6) elongation vertical 



Form 



No. Letter 



t.. 



Z-. 



y-- 



e._ 

 m. 

 r._ 

 K. 

 a.. 



f~ 



o__ 

 k._ 

 d__ 



7!.. 



M 



If 



Symbol 



Gdt. Miller 







ooO 

 3oo 



10 



JO 



-10 



-0 



-20 



-30 



01 



oy 2 

 i 

 -i 

 -H 



-21 



Quality, description 



001 Very good. 



100 do 



110 ; Excellent.. 

 310 Very poor. 



101 i Very good. 



102 do 



101 | Excellent.. 



302 Medium.. 



201 do 



301 do 



011 , Fair 



012 ! Medium.. 



111 i do 



111 i Good 



112 j Very poor.. 



211 I Medium.. 



212 : Good 



90 00 



90 00 



35 00 



64 33 



90 00 



90 00 



90 00 



90 00 



90 00 



90 00 



31 31 



50 48 

 48 01 

 35 13 

 48 16 



51 41 

 54 41 



The same crystal, partly remeasured in normal position gave the 

 following: angles: 



The crystal illustrate! in Figure 95 is doubly terminated and is 

 rather short prismatic in habit. This is likewise drawn with the 

 elongation vertical although it was measured in normal position 

 and grave the following; angles: 



