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Vitruvius

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The stone in quarries is found to be of different and unlike qualities. In some it is soft... in others it is medium... in still others it is hard as in lava quarries. There are also numerous other kinds: for instance, in Campania, red and black tufas; in Umbria, Picenum, and Venetia, white tufa which can be cut with a toothed saw like wood.
--
Chapter VII, Sec. 1

 
Vitruvius

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There are also several quarries called Anician in the territory of Tarquinii, the stone being of the color of peperino. ...Neither the season of frost nor exposure to fire can harm it, but it remains solid and lasts to a great age, because there is only a little air and fire in its natural composition, a moderate amount of moisture, and a great deal of the earthy. Hence its structure is of close texture and solid, and so it cannot be injured by the weather or by the force of fire. Monuments in the neighborhood of the town of Ferento which are made of stone from these quarries... gracefully carved. Old as these are, they look as fresh as if they were only just finished. Bronze workers, also, make molds for the casting of bronze out of stone from these quarries and find it very useful in bronze-founding.

 
Vitruvius
 

All these soft kinds [of stone] have the advantage that they can be easily worked as soon as they have been taken from the quarries. Under cover, they play their part well; but in open and exposed situations the frost and rime make them crumble, and they go to pieces. On the seacoast, too, the salt eats away and dissolves them, nor can they stand great heat either.

 
Vitruvius
 

Next comes the consideration of stone quarries from which dimension stone and supplies of rubble to be used in building are taken and brought together.

 
Vitruvius
 

Since, on account of the proximity of the stone-quarries... nearest to the city, necessity drives us to make use of their products, we must proceed as follows if we wish our work to be finished without flaws. Let the stone be taken from the quarry two years before building is to begin, and not in winter, but in summer. Then let it lie exposed in an open place. Such stone as been damaged by the two years of exposure should be used in the foundations. The rest, which remains unhurt, has passed the test of nature and will endure in those parts of the building which are above ground. This precaution should be observed, not only with dimension stone, but also with the rubble which is to be used in walls.

 
Vitruvius
 

Road poured out into a place of meadows and a few White man’s buildings. Lots of wagons. Horses posted and tied, grazing on the meadow grass. Sounds of metal hammers ringing, chopping of axes in the wood, screech of saws going back and forth, all kinds of White-man forest-killing sounds. A White man’s town.

 
Orson Scott Card
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