No. 50 J . 95 
Sulphate of barytes — Several localities. Sometimes it^exhibits inte- 
resting crystalline forms. 
Satin spar, agaric mineral and calcareous tufa. All these forms of 
carbonate of hme are found in this county. 
Magnesian carbonate of lime — Gouverneur. 
Phosphate of lime, crystaUized — Governeur, Robinson^s mine, and 
elsewhere in the town of Rossie. The specimens from Robinson's 
mine are often very large and perfect. One crystal has been obtained 
weighing eighteen pounds ! 
Quartz, crystalhzed, limpid and smoky ; also other varieties. 
Brucite — Near Sumerville. 
Talc — Several varieties — De Kalb and elsewhere. 
Pyroxene, in all its varieties. Abundant. 
Hornblende — Several varieties, as Pargasite, tremohte, &c. Rossie 
and Gouverneur. 
Asbestus — Gouverneur and De Kalb. 
Terenite, of Emmons — Probably in Jefferson county. 
Feldspar, common and crystallized — Rossie and Gouverneur. 
Albite — According to Dr. Emmons this mineral is found in the gra- 
nite rocks of this county. 
Labradorite — In bowlders near Ogdensburgh, and elsewhere. 
Mica— Several interesting localities in Rossie, Fowler, Edwards and 
Morristown. 
Spinelle — Rossie. 
Tourmaline, brown and black — Several localities. 
Zircon, in beautiful crystals — At Robinson's mine, Rossie. 
Babingtonite — According to Dr. Shepard this mineral is found at 
Gouverneur. 
Titaniferous iron. Probably several of the iron ores contain titanium, 
as this metal has been found in the slag of furnaces. 
Sphene- — Several localities. 
SARATOGA COUNTY. 
This county has been long celebrated for the remarkable mineral 
springs which it contains. These, as is well known, are chiefly situated 
in or very near to the villages of Saratoga and Ballston. To the account 
which I have already given of these waters, I have nothing to add at 
