52 NEW YORK STATE MUSEUM 



The Clinton hematite affords an excellent base for the manu- 

 facture of metallic paint and mortar color. The beds with a 

 relatively high iron content are employed, as they possess the 

 softness and uniformity of texture, as well as depth of color, 

 which are generally sought for. The mines owned by C. A. 

 Borst at Clinton, Oneida co. and those of the Furnaceville Iron 

 Co. at Ontario, Wayne co. supply most of the ore for paint. 

 The hematite from the former locality belongs to the oolitic 

 variety and that sold to paint manufacturers carries about 45 

 per cent iron. The ore in Wayne county is of fossil character 

 carrying about 40 per cent iron. The red hematite from St 

 Lawrence county is also used for metallic paint. 



The manufacturers of metallic paint and mortar colors in New 

 York State include the Clinton Metallic Paint Co. of Clinton, 

 the William Connors Paint Manufacturing Co. of Troy, and 

 the Rossie Iron Ore Paint Co. of Ogdensburg. A considerable 

 quantity of the Clinton hematite is shipped to points outside of 

 the State for manufacture. 



Both shale and slate are ground for mineral paint, their color 

 depending largely upon the amount and character of the iron 

 oxids present. When there is a large proportion of ferric oxid 

 the shale and slate may be sold as metallic paint. At Randolph, 

 Cattaraugus co. beds of green, brown and bluish shale occur- 

 ring in the Chemung formation have been vv^orked by the Elko 

 Paint Co. In years past red shale from the base of the Salina 

 formation has been obtained in Herkimer county for paint. A 

 similar material occurring in the Catskill series has been 

 worked at Roxbury, Delaware co. The red slate of Washing- 

 ton county, which belongs to the Cambric, is also ground for 

 paint. The Algonquin Red Slate Co. of Worcester, Mass. and 

 A. J. Hurd of Eagle Bridge, are producers of this material. 



A product known as mineral black has been made from the 

 slates found in the Hudson River series. Certain beds contain 

 considerable carbon in a finely divided almost graphitic condi- 

 tion which gives them a dense black color. 



The ferruginous clay called ocher is of common occurrence, 

 but is not now worked in the State. Sienna, a deep brown 

 variety of ocher, is found near Whitehall. 



The production of mineral paints in 1909 was as follows : 

 metallic paint and mortar color 6560 short tons valued at 

 $65,600; slate pigment 11 55 short tons valued at $9130. In 1908 



