98 #. 8. Dana—Chondrodite from the Tilly-Foster Iron Mine. 
allowed of measurement. Fortunately these two crystals are 
very satisfactory, being small and brilliant, and establish the fact 
as well as hundreds could do. Figures 11 and 12 show one of 
are for the most part hemihedral and situated in the same way. 
No brachydomes are visible, the edge being rounded and rougb. 
Tasie V.* 
Chondrodite. Humite. 
A= 0 (001). v. Rath. 
Cale. Meas.(XX). Meas.(XXT)} Calculated. 
“| 4-2| 041 [100° Vv 1%” 
@)2-7| 021 [109 27 35 109° 27’ 54” 
@li-7| 011 |125 14 49 125 15 18 
2 
uit) 023 [136 40 4 136 40 34 
Bigs ; 
are. 9811 131 25 57 | 131° 46’| 131° 941131 24 49 
8. 125 37 
p*|—-3] 289 [125 50 6 err ar 1125 48 [125 49 0 
e. 119 35 
Ph 987 (119 19 18 ‘> 15 |118 36 |119 18 19 
8 lll] 44 
Fale 285 j|111 51 38 ir 4g {112 0 |111 50 50 
ee oe 
pe" 32} 283 [103 32 4] 103 41/103 38 {103 31 33 
p*| 8-3! 281 eatop 
94 35 15 |} of j3| 94 48/94 35 4 
4 
yl = | 41 [132 17 48 132 16 |132 16 43 
4 
y? 3 |“ 3 1 8 122 32/123 0 8 
4 
a) 3 | 43 fl is 7 tii Bn 
lv#} 4 | 441 197 24 20 97 299|97 24 3 
The second erystal is of very different form, and was imbedded 
mostly broken. When only the upper part of the crystal is 
oa of the memoir. Other angles of these crystals are given in 
