A Treatise on the Building and Ornamental Stones of Great Britain and Foreign Countries: Arranged According to Their Geological Distribution and Mineral Character, with Illustrations of Their Application in Ancient and Modern Structures
Macmillan and Company, 1872 - 333 Seiten
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acid amongst ancient Arch architecture augite bands bardiglio basalt beautiful beds building stone calcareous carbonate of lime Carboniferous Carrara Cathedral Chateau churches colour columns compact composed composition construction contains Cornwall crystalline crystals cubic foot Derbyshire Devonian diorite dolerite dolomite Dublin durable Encyc England feet felspar felspathic fine-grained flagstones foliated formation formed France freestone Geol Geological gneiss grains granite granular green greenish grey greyish Grit Gwilt gypsum Hill hornblende Ireland iron Island Italy Journ Jurassic large blocks largely employed limestone Lower magnesia marble mass material Melaphyre metamorphic mica micaceous Millstone Millstone Grit minerals Murchison North obtained occurs oligoclase Oolite ornamental orthoclase oxide Permian polish porphyry portions Portland Practical Geology purposes quarries quartz reddish rocks Rome Roofing slates sandstone schists Scotland sculpture serpentine silica Silurian specimens statuary strata structure surface Survey syenite Tertiary texture thickness Upper varieties veins volcanic yellow Yorkshire Zirkel
Seite 240 - in full force in the north of Africa, as for example in Algeria and Morocco. It has been traced from Egypt, where it was largely quarried of old for the building of
Seite 284 - From the manner in which the buildings and monuments of Italy, formed of calcareous materials, have retained to a wonderful degree the sharpness of their original sculpturing, unless disfigured by the hand of man, it is clear that a dry and smokeless atmosphere is the essential element of durability. In this respect, therefore, the humid sky and gaseous
Seite 99 - in general estimation some of the varieties of serpentine. This is due both to the richness and variety of its colouring, and its capability of receiving a fine polish. It is not, however, adapted to outdoor use, especially in the smoky or gaseous atmosphere of cities ; for, being acted on by hydrochloric and sulphuric acids, it is liable either to decay,
Seite 99 - to become tarnished on the surface. But, for indoor decorations, and the construction of slender shafts, pilasters, pedestals, vases, inlaid slabs for walls, and ornaments of various kinds, serpentine is often employed with successful results.
Seite 181 - for several days in honey and water, and then soaking it in sulphuric acid to bring out the black and white
Seite 174 - brittle. It is usually turned in a lathe, and worked down, first with a fine steel tool, then with a coarse stone,
Seite 92 - marine lavas and tuffs, trachytic and basaltic products of subaerial volcanic origin, between 4000 and 5000 feet in thickness, have been piled,
Seite 205 - to equivalent proportions of carbonate of lime and carbonate of magnesia, the more crystalline and better they are in every respect.
Seite 169 - New York, near Lockport, affords beautiful selenite and snowy gypsum in limestone. At Camillus and Manlius, NY, and in Davidson County,