The Granite Industry of Southwestern New Brunswick: A Historical ...

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56 The Granite Industry of Southwestern New Brunswick: A Historical Perspective strength, and much lower drilling factor all indicate that this stone is fresher than the nearby ‘Glenley Stone’ quarried farther downslope (see below). Analysis Parks (1914, p. 148) reports the following physical characteristics for black granite from the Stuart Quarry. Characteristic Value Unit Specific gravity 2.958 n/a Weight per cubic foot 184.132 lb Pore space 0.29 per cent Ratio of absorption 0.096 per cent Coefficient of saturation: one hour 0.30 n/a Coefficient of saturation: two hours 0.39 n/a Crushing strength 39,928 lb / sq in Loss on treatment with carbonic acid & oxygen 0.00038 gm / sq in Transverse strength 4,543 lb / sq in Drilling factor 1.4 mm Factor of toughness 5 blows A second opening in the Stuart Quarry is located farther down the slope and was operated by Epps, Dodds & Co. The black granite from this site (the ‘Glenley Stone’ referred to above) was shipped to St. George for monumental use. The following account is paraphrased from Parks (1914, p. 145–146). The excavation is well up on the mountainside and is about 50 feet square, with a maximum depth of 15 feet. The rock lies in sheets with an east–west strike and a dip of 45ºS. On average, the parting planes are 3 feet apart. An irregularly developed set of joints runs through the formation, with a southeast strike and a dip of 70ºSE. A second joint set strikes northeasterly and dips 80ºNW. These two joint sets and the sheeting planes fracture the formation fairly severely; however, blocks measuring 4.5 feet by 2.5 feet by 1.5 feet have been obtained free from flaws. The exposure shows a pronounced vertical rift in a northeast–southwest direction and a less distinct horizontal grain. The stone is hard to split in a northwest–southeast direction. The grain in the stone is uniform, says Parks, with both the black and white constituents ranging from one twelfth to one sixth of an inch long. Under the microscope, the white portion is plagioclase feldspar (probably labradorite). The mineral shows a fair state of preservation, although some decomposition has begun. The dark portion includes hornblende and augite, the former mineral resulting from decay of the latter. Considerable magnetite accompanies the dark minerals. Feldspar crystals penetrate the original augite crystals, producing an ophitic structure. Parks also reports that the stone is hard and tough but capable of receiving an excellent polish. Its crushing strength is much lower than that of the finer grained Townsend Quarry (52) on the west side of the South Glenelg Road (see p. 57). The effect of the corrosion test is distinctly seen as a pitting on the surface of the dark minerals and the production of a lighter greenish cast in the same. Analysis Parks (1914, p. 146) reports the following physical characteristics for the Glenley Stone from the Stuart Quarry being worked by Epps, Dodds & Co. in 1911.
Part One — The St. George District 57 Characteristic Value Unit Specific gravity 2.924 n/a Weight per cubic foot 181.557 lb Pore space 0.535 per cent Ratio of absorption 0.224 per cent Coefficient of saturation: one hour 0.45 n/a Coefficient of saturation: two hours 0.66 n/a Crushing strength 38,906 lb / sq in Crushing strength (wet, average of three) 35,620 lb / sq in Crushing strength (wet after freezing) 34,000 lb / sq in Loss on treatment with carbonic acid & oxygen 0.00607 gm / sq in Transverse strength 3,545 lb / sq in Drilling factor 5.5 mm Factor of toughness 9 blows Townsend Quarry History The Townsend Quarry (52) was worked from 1908 to 1910. It was first mentioned in June 1908, when Tayte, Meating & Co. excavated black granite from the site. Epps, Dodds & Co. also may have removed some stone, but by 1911 the quarry was abandoned. Quarry The Townsend Quarry is located about 2,000 feet southwest of Stein Lake on a hillside at the south end of Russell Ridge. It is reached by going two miles northeast of Chamcook Station on the highway from St. Andrews (Highway 127), thence north on the South Glenelg Road for one and a quarter miles and hence northwest on a trail for about 1,600 feet (Map 2, 52). This is Above: New River # 1 Bridge, situated on Highway 1 just west of New River Beach Park. The bridge was constructed in 1943–46 of red, black and grey granite from the Stillwater and other quarries in the St. George area. GM The Bridges of Charlotte County During World War Two, granite from several St. George-area quarries was used to construct stone bridges in Charlotte County. One of these, the Stillwater Quarry (Map 2, 49), originally belonged to manufacturer Levi H. Young, proprietor of the Bolt and Nut Works of Saint John. Young opened the Stillwater Quarry in mid-1874 on property he owned by the Digdeguash River near Stillwater Bridge. He and his associates incorporated the Digdeguash Red Granite Co. in August 1875 but apparently sold little or no stone. In 1943 the New Brunswick Department of Public Works reactivated the quarry to build several bridges, including ones at New River Beach and Moores Mills (Martin 1990b, p. 206–207).
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Energy and Mines The Granite Indust
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Energy and Mines The Granite Indust
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Preface and Acknowledgements iii Ta
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Preface and Acknowledgements v Pref
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Preface and Acknowledgements vii Ac
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Part One — The St. George Distric
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Part One — The St. George Distric
Page 15 and 16: Part One — The St. George Distric
Page 65: Part One — The St. George Distric
Page 79 and 80: Part Two — The Hampstead District
Page 103 and 104: Appendices 93 class of stone his cu
Page 105 and 106: Appendices 95 It has long been the
Page 107 and 108: Appendices 97 Quarry 6, Map 3. View
Page 109 and 110: Appendices 99 Above left: Quarry 12
Page 111 and 112: Appendices 101 Above left: Quarry 3
Page 113 and 114: Appendices 103 Left: Quarry 46 (‘
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