CusACK — On ihe Melting Points of Minerals. 



411 



I then concluded Eiallage "was melted at temperature corre- 

 sponding to 2260 - 1812 ^ 3-83 = 0-01169 or 1264° C. 



By making similar trials I found that the little particles fell 

 about first at a temperature of about 8° lower. 



SILICATES. 



BlSILICATES. 



Actinolite (green) — 



A. 1288°, Greenland. 



B. 1282°, Glenely, Scotland. 



C. 1272°, Tyrol. 



D. 1275°, — . 



Treraolite — 



A. 1223°, — . 



B. 1219°, Bunbeg, County 



Donegal. 



Hornblende — 



A. 1187°, Arendal, Xorway. 



B. 1196°, YesuTius. 



C. 1200°, — . 



Diopside — 



A. 1187°, Ala, Piedmont. 



B. 1192°, — . 



C. 1195°, — . 



Biallage — 



A. 1264°, 



B. 1300°, 



C. 1278°, 



D. 1284°, 



E. 1270°. 



A^iffite — 



A. 1188°, Tyrol. 



B. 1199°, Yesuvius. 



C. 1187°, Terro del Greco. 



Spodumene — 



1173°, Killiney. 



Enstatite — 



1295°. Bronzite. 



Wollastonite — 



A. 1203°, New York. 



B. 1208°, Manta Somoma. 



