139 
DALKEY QUARRIES. 
Per Cent. Atomic Quotients. Proportionals. 
Silex, 64:00 1-412 4:01 
Alumina, 111. 0°352 1:00 
Magnesia, 0°57 0:028 
rites 6 s,s), es Lrace, -» . 0-000 pane ig 
pee. heeds... ecomme | 
Sodas 2 4 BOS OS00 0:097 
Loss by ignition, 0°55 
98°96 
Sp. gr. =2°540. 
THREE-ROCK MOUNTAIN. 
Per Cent. Atomic Quotients. Proportionals. 
plex. ©. :. -. 1. ‘#6040 .-. 1-444 - 4:19 
Alumina, 17-71 2 0°344 1:00 
Miasuesia, 2 «fw TT 0-088 
MERE ie a \s. wer EEACE, 0-000 0-420 1-22 
2s i 10°68 . 0°227 
SOUR. uso 3°26 - 0105 
Loss by ignition, 0°69 
99°51 
Sp. gr. = 2562. 
LOUGH BRAY. 
Per Cent. Atomic Quotients. Proportionals. 
Sle ae 65°44 1444 ..., 4:04 
Alumina, a 18:36 = "0357 1:00 
Magnesia, 0:00 - 0-000 
Mmice sk. a 0°80 - 0:038 
Potash, . . 1234 Brecge (28" Ge 
Preah eta eS 0:088 
Loss by ignition, 0°52 
100-19 
Sp. gr. = 2°554. 
