112 . NEW YORK STATE MUSEUM 



of their color ; but the degree of natural fineness and the amount of 

 oil required in mixing must also be considered in determining their 

 utility. At Randolph, Cattaraugus co. beds of green, brown and 

 bluish shale occur in the Chemung formation. They are worked by 

 the Elko Paint Co. In years past red shale has been obtained in 

 Herkimer county from the Vernon beds at the base of the Salina. 

 A similar material occurring in the Catskill series has been worked 

 at Roxbury, Delaware co. The red slate of Washington county, 

 which belongs in the Cambric, is also ground for paint. The Algon- 

 quin Red Slate Co., of Worcester, Mass. and A. J. Hurd of Eagle 

 Bridge produce this material. 



A product known as mineral black is made by grinding slate 

 found in the Hudson River series. 



The ferruginous clay called ocher occurs quite commonly in the 

 State, but no deposits are exploited at present. A bed occurring on 

 Crane mountain, Warren co. once supplied a considerable quantity. 



Sienna, a variety of ocher, occurs near Whitehall. The deposit 

 is a thin stratum in glacial drift and has been worked on a small 

 scale. 



In addition to the producers above mentioned, the Clinton Metallic 

 Paint Co. of Clinton, and the William Connors Paint Manufactur- 

 ing Co. of Troy, are engaged in the manufacture of mineral paints, 

 from New York materials. 



The production of mineral paints in 1905 was as follows : metallic 

 paint and mortar color, 6059 short tons, valued at $70,090 ; slate 

 pigment, 2929 short tons, valued at $22,668. In the year 1904 the 

 following quantities were reported: metallic paint and mortar color, 

 4740 short tons, $55,768; slate pigment, 3132 short tons, valued at 

 $23,876. These totals include only the output made within the 

 State from local materials. A part of the crude material produced 

 each year is shipped to points outside of the State for manufacture. 

 An output of 10,050 tons was reported in 1905 by four firms who 

 sell the crude ore and rock to paint grinders. 



MINERAL WATERS 



The mineral springs of New York afford a variety of waters 

 suited for medicinal or domestic purposes. Over 200 different 

 springs have been listed and classified according to their mineral 

 composition, though many find no commercial application except, 

 perhaps, as sources of local water supply. Some of the springs are 

 places of resort for tourists and health seekers. 



