"Siliceous" Quotes from Famous Books
 ... Such was Stonehenge originally, but its ruins now appear very differently, and are only a confused pile of huge stones, for the most part such as are found on the neighboring plain and known as sarsens (a siliceous sandstone), though some of the smaller ones may be boulders brought from a distance. The diameter of the enclosure is three hundred and thirty-six feet. On the outer circle sixteen of the uprights and six of the surmounting ...
— England, Picturesque and Descriptive - A Reminiscence of Foreign Travel • Joel Cook
... cement. This may be calcareous, consisting of soluble carbonate of lime. In brown sandstones the cement is commonly ferruginous,—hydrated iron oxide, or iron rust, forming the bond, somewhat as in the case of iron nails which have rusted together. The strongest and most lasting cement is siliceous, and sand rocks whose grains are closely cemented by silica, the chemical substance of which quartz is made, are known ...
— The Elements of Geology • William Harmon Norton
... the top of which the jet appears to rise, is composed of a substance named siliceous sinter, and is a deposit from the water of the fountain. At the top of this mound, which is between six and seven feet in height, there is an oval basin, measuring about fifty-six feet in one direction, and about forty- six in the other; its average depth is about ...
— Wonders of Creation • Anonymous
... spread. l. 35. The granite, or moor-stone, or porphory, constitute the oldest part of the globe, since the limestone, shells, coralloids, and other sea-productions rest upon them; and upon these sea-productions are found clay, iron, coal, salt, and siliceous sand or grit-stone. Thus there seem to be three divisions of the globe distinctly marked; the first I suppose to have been the original nucleus of the earth, or lava projected from the sun; 2. over this lie the recrements ...
— The Botanic Garden - A Poem in Two Parts. Part 1: The Economy of Vegetation • Erasmus Darwin
... stone, with fine grains intermixed all through it, partly of real native iron, and partly of yellowish brown ochre of iron: and as being about as hard as building stone.—It is said not to effervesce with acids, and evidently to consist of small particles of siliceous stone and iron.—It had also a solid malleable coat of native iron, as was supposed, quite free from sulphur, and about two lines thick; which quite covered its surface; resembling a blackish glazing. And the whole mass exhibited evident ...
— Remarks Concerning Stones Said to Have Fallen from the Clouds, Both in These Days, and in Antient Times • Edward King |
