T® NEW YORK STATE MUSEUM 



Other occurrences of fluorite that have been noted are mostly 

 small veins in limestones. Whitlock ^ mentions the following as of 

 economic or mineralogic interest. At Macomb, St Lawrence cotmty, 

 a small vein in limestone yielded about 1 5 tons of finely crystallized 

 fluorite of sea-green color. At Muscalonge lake, Jefferson county, 

 a vein was- worked on a considerable scale about 75 years ago. The 

 locality is on the east shore of the lake about 4 miles northwest of 

 Oxbow. Another vein is found on Vrooman's lake about 2 miles 

 east of the latter locality. Other occurrences in this general region 

 are at the lead mines of Rossie and Mineral Point, and in the towns 

 of Hammond, Fine, Gouverneur, De Kalb and Theresa. Elsewhere 

 fluorite has been noted as occurring at Lockport and Rochester in 

 the Niagara limestone, at Fayetteville, Onondaga county, Lowville, 

 Lewis county, and Johnsbiirg, Warren county. 



The veins associated with limestones are the main sources of 

 supply for fluorite in general, but those in New York are hardly 

 substantial enough to warrant mining under existing conditions. 



FULLER'S EARTH 



This material was formerly obtained in New York but has not 

 been reported among the mineral products for several years past. 

 It occurs at a single locality, so far as known, and the deposits seem 

 to be rather meager to be workable under existing conditions. The 

 following account of the occurrence is quoted from the voltime by 

 Prof. H. Ries ' on " The Clays of New York." 



'"In New York, deposits of fuller's earth occur at a locality known 

 as McConnellsville, 12 miles north of Rome on the Rome, Water- 

 town 8c Ogdensburg railroad. The deposit has been worked for 

 several years by the New York Fuller's Earth Co., and is a fine- 

 grained, dense. Quaternary clay in layers 2 to 8 inches thick, inter- 

 bedded with layers of sand of equal thickness. The total thickness 

 is about 15 feet, and there is a capping of about 4 feet of sand. To 

 mine the earth, the overlying sand has to be stripped off and the 

 layers of fuller's earth taken off one by one, arid spread in the sun 

 to dry, the racks being movable, so that they can be shoved under 

 cover in stormy weather. • Thus far this fuller's earth has been used 

 only for cleansing woolen goods, and it has been shipped to several 

 factories in New York and neighboring states. A second mine of 



1 N. Y. State Geologist 23d Ann. Rep't, 1903, p. 187-88. 

 2N. Y. State Mus. Bui. 35, 1900. 



