o | Notices of the Geology and cares ed of Sicily. 205 
rater of Etna. Great > ges of sypsum are used in 
stucco, particularly at Cat “ 
iy uor Spar is found in cecal pieces coufunsdly sf 
; ne in the mountains of Judica and Torcisi; colour: ‘tine- 
i reous or violet; rare. 
Barytes, very common; in a'most all the sulphur mines, 
and as the matrix of he ores of copper, lead and set at 
the foot of the mounta ns of Pelorus. Carbonate 
rytes in the sulphur r tired of Asaro an . 
Sscatt 
yellowish. ‘ 
Sulphate of Barytes, very common, alone, or Ghited me- 
chanically. ee carbonate ial ee of lime; “Sabet in 
the sulj iesi, sometimes very hard and fine 
bined Porystallized in the sulphur mines on masses of 
compact variety, and of carbonate and sulphate of lime, 
clay, &c. At Raddusa they find masses incrusted with 
Siabued crystals, resembling stalagmites. Fetid sulphate 
lamine covered with shining black dendrites; 
_-Strontites. e sulphate is found in all the sulph ur 
confused crystals, on the masses of sulphur and 
ife oO 
phou $ masses, always associated with sulphur and gypsum. 
Carbonate of Strontian, in the sulphur mine of Asaro, in 
Amorphous masses, grey, with a brilliant scaly fracture. 
uartz, in veins in the granite, gneiss, argillite, &c. in 
“rolled pieces and fragments at the foot of the mountains of 
‘elorus; also, in beds of rolled pieces and pebbles, in the 
chill wad limestone 2 ee 43 Sometimes traversed by 
veins of calcareous S| 
sed ofan Feezwiite of irregular prisms. | 
| ‘crystals of transparent quartz, in the 
Paste of the ead Taormina. Siliceous ‘Slates in the 
‘Umestone m ountain aormina, in inclined strata, 
Haan, mpeueealy conchoidal fracture, colour smoky. 
cosas tolled pieces, In oe limestone moun- 
masses 5 in tegen ores at Foe Re i 2 
inthe sulphur mines; some large laminar masses het the 
f lime; also, in yellowish white, fibrous, amor- — 
