Architectural variety and solidity are favoured in the buildings of the city by a wealth of beautiful building stones of varied colours (limestones, sandstones, lavas, granites and marbles), in addition to which bricks and Roman tiles are employed. [Please select]
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Common flint, sandstones, and the sand of our shores, are made of quartz, and therefore belong to the first class of Silicious or Flint Rocks. [Please select]
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The harder and denser sandstones, mica-schists, granites and syanites make good stone for concrete and occasionally shale and slate may be used. [Please select]
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Of all these rocks and formations, the primitive, as has already been stated, and the sandstones, are wholly devoid of organic remains. [Please select]
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These sands, in a state of greater or less division, and agglutinated by siliceous or calcareous cements, form the rocks called sandstones. [Please select]
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No sandstones of the East glow with such a splendor of carnelian hue. [Please select]
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Stones that have flat beds like many sandstones and limestones can be laid upon layers of dry concrete and have the vertical interstices filled with dry concrete by tamping. [Please select]
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