. Annual report. New York State Museum; Science; Science. i88 NEW YORK STATE MUSEUM Gouverneur marble gave the following results: specific gravity, ; corresponding to a weight of 171 pounds to the cubic foot; ratio of absorption .111 per cent; pore space, .305 per cent. The St Lawrence Company's quarries The quarries of this company include two openings near the mill and railroad track, a little more than a mile southwest of Gouverneur, and a third lying to the east on a separate vein. The latter, known as the Extra Dark quarry, alone was in operation. Fig. 15 Gouverneur marble in thin sec


. Annual report. New York State Museum; Science; Science. i88 NEW YORK STATE MUSEUM Gouverneur marble gave the following results: specific gravity, ; corresponding to a weight of 171 pounds to the cubic foot; ratio of absorption .111 per cent; pore space, .305 per cent. The St Lawrence Company's quarries The quarries of this company include two openings near the mill and railroad track, a little more than a mile southwest of Gouverneur, and a third lying to the east on a separate vein. The latter, known as the Extra Dark quarry, alone was in operation. Fig. 15 Gouverneur marble in thin section, showing the irregular boundaries between the particles and firmly interlocked texture. Enlarged 25 diameters at the time of the writer's visit in the fall of 1912. It is an open- ing 125 feet long, 80 feet wide and 20 to 30 feet deep. At the surface the marble is of medium 'bluish color somewhat mottled with white, but becomes dark blue below, which is the grade par- ticularly sought, as the other quarries supply lighter stock. The beds dip northwest 30° and pitch southwest 25 °. Two vertical joint systems running N. 300 W. and N. 65° E. are in evidence. As shown in the accompanying illustration, the quarry is crossed by a vertical trap dike which is left standing as a wall; the dike. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original New York State Museum. Albany : University of the State of New York


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