Bulletin, Ausgabe 4The Survey, 1898 |
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abundant alternate freezing Amberg Average number beds biotite blocks bluffs Bros brown brownstone buff building purposes building stone calcite cement Chapter VIII clay pockets color courses crushing strength cubes cubic foot curbing cutting and dressing dimension stone Duluth Dunnville Facilities at hand feet feldspar Flag River formation freezing and thawing furnish grade grains gray hammer hand for quarrying igneous rocks inch iron oxide Iron River irregular Lake Superior Lannon lime limestone located macadam mainly Microscopical miles Milwaukee minerals Montello granite monumental number of employees obtained occurs opening operated paid different classes paving pier Pike River places Plate polished pore space porosity Potsdam quartz quartzite rhyolite river rough rubble samples specific gravity Statistical Data Stone Co.'s quarry stone quarried stripping suitable surface Table temperature tests texture thickness Trenton Wages paid different walls Washburn Wauwatosa weathering Wisconsin WISCONSIN GEOL
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Seite 431 - It follows: 1, talc; 2, gypsum; 3, calcite; 4, fluorite; 5, apatite; 6, orthoclase; 7, quartz; 8, topaz; 9, corundum; 10, diamond.
Seite 129 - ... Kickbush & Son, in 1895, and is worked from April to November of each year. The quarrying operations have thus far been confined to large boulders. The New Hill O'Fair quarry, owned and operated by Olson & Magnesun, is adjacent to the Kickbush property, and produces essentially the same granite. It was opened in 1896. At the present time four companies are operating in the Wausau granite. The Cohn & Robertson Mfg. Co. and the Fred DeVoe Granite Co. are operating the quarries of the LS Cohn Granite...
Seite 22 - ... the size of the pore spaces. The second factor of importance is the amount of water contained in each of the pores at the time of freezing. Third and last in importance is the total amount of pore space. The higher the percentage of pore space, provided the pores are of the same size and the degree of saturation be equal, the greater the danger from freezing. TS Hunt, in "Chemical and Geological Essays," says: "Other things being equal, it may properly be said that the value of a stone for building...
Seite 260 - This quarry when in operation was equipped with one 20-horsepower engine, one air compressor, one surfacer, and one derrick. Transportation is by wagon over a hilly road 2 miles to Tishomingo as a shipping point. Stone from this quarry has been used in the construction of the...
Seite 335 - ... cleavage in three directions, by means of which it breaks into small six-sided pieces, with inclined faces, called rhombohedrons. Calcite is often mistaken by the inexperienced for quartz. The color of the two minerals is almost identical, but if one will bear in mind that the hardness of calcite is 3 and that of quartz 7, there can be little danger of confusion. Furthermore, calcite has the perfect cleavage, above mentioned, which is not present in quartz. Calcite is an essential constituent...
Seite 335 - The hardness is 3. Calcite is sometimes clear and transparent, but is more often white or cloudy. It sometimes contains impurities which impart a brown or pink color. It has a perfect cleavage in three directions, by means of which it breaks into small six-sided pieces, with inclined faces, called rhombohedrons. Calcite is often mistaken by the inexperienced for quartz. The color of the two minerals is almost identical, but if one will bear in mind that the hardness of calcite is 3 and that of quartz...
Seite 172 - ... in. It is now customary to arch the windows and doors, instead of using single blocks for window or door caps. Used in this manner, the sandstone is sufficiently strong to support any load that may be required of it. The average specific gravity of ten samples, given in Chapter VIII., Table V., is 2.637. The porosity, or percentage of actual pore space, recorded in the same table, is higher than most of the other rocks from Wisconsin quarries, and is apparently higher than sandstone from other...
Seite 349 - ... limestone or dolomite ; if bitumen, a bituminous limestone or dolomite. Silica often occurs either as original grains of quartz or as a product of infiltration. It may be almost equal in importance to that of calcium, carbonate and in such case the rock might with equal propriety be called an arenaceous limestone or a calcareous sandstone. Iron is frequently a subordinate constituent, either as the carbonate, oxide, or sulphide. If present in any considerable quantity the rock is known as a ferruginous...
Seite 347 - ... cleavage. It is also quite readily dissolved in carbonated waters. A sandstone in which the individuals are cemented with, iron oxide is less strong than one cemented with either silica or calcite. As a rule, iron oxide is the least important of the three cements. Writers are constantly classifying iron oxide as a more durable cement than calcite, probably drawing their conclusions from the durability of the brown sandstone. But the most durable brown sandstone, such as occurs in Wisconsin, is...
Seite 429 - ... of the minerals, the more important rock types are discussed and characterized. Any general statements that are made in these pages with reference to the importance, abundance, hardness, durability, etc., of different minerals or rocks, unless otherwise stated, refer to building stones as a class, and not to rocks in general. COMPOSITION AND KINDS OF STONE. MINERALS. Any rock which may be picked up for examination is composed, as a rule, of several different minerals in a state of aggregation....