Eakle.1 



Colemanite from Southern California. 



35 



New Forms. — With the exception of 5 341 } , each of the new 

 forms was observed but once. 



1= 300 { 310}. This form was represented by a narrow face 

 between |100} and [ 210 } . The reflection was bright and 

 good. 



<j> P 

 Measured 76°29' 90°0 / 



Calculated 76 20 90 



P = +30|301(. This was a narrow bright face, but the image 

 was only fair, and the p-angle varied somewhat from the 

 calculated one. 



(f> p 

 Measured 90°2 / 69°33 / 



Calculated !>(> 68 57 



g — — f \ 502 } . This form occurred as a small triangular face, 

 giving a good reflection. 



P 



Measured \M°T 56°20' 



Calculated 90 56 12 



/= — 80 i 801 1 . This was a very narrow dome face, and the 

 reflection was poor. The face occurred between |100( and )201i 

 in the same zone. 



<t> p 

 Measured 89°23 / 80° 13' 



Calculated 90 79 51 



<t> = +fl|522} . This form occurred as a narrow face between 

 \Bll\ and | 111}. It gave a fair reflection, but the angles vary 

 somewhat from those calculated for the symbols. The symbols 

 are the simplest and probably the most correct for the form. 



<f> p 

 Measured 75°49 / 65°46' 

 Calculated 76 18 (36 26 



p = 42 j 142 } . This was a very small triangular face with a 

 bright image. 



</> P 

 Measured 34°33' 52°47 / 



Calculated 34 12 52 43 



