__ earbonate of lime, 3-95 
376 A. A, Julien on Minerals of the Key of Sombrero. 
C. Sp. gr. =2:988-3-030. Color straw yellow, buff, and shades 
of brown. Opaque. Brittle. Narrow blades, sometimes an 
or quite solid. Occurs in limestone cavities. The following are 
a complete and a partial analysis of different specimens, the lat- 
ter having been spoiled by an accident: 
L II. 
Water and organic matter, - - - $98 -3°88 
Sulphuric acid, - - - - - 18 —- 
Carbonic acid, - - - - - 1-74 alittle 
Phosphoric acid, . - - - 43°24 mee 
Magnesia, - - - - - - 56 — 
Lime, - - . - - . 48°87 47:15 
Alumina and sesquioxyd of iron, - = 2202 oa 
Fluorine, - - - - - - trace. trace. 
Chiorid of sodium, - - . - 2 ae 
99°59 
lime in this case, and arrange the analysis, for example, as fol- 
lows: Water and organic matter, 3°90; sulphate of lime, 89; 
of 
d of 
