Squared stone

Squared stone

1.
2. Roughly dressed stone blocks with rectangular faces.
See also: Stone
References in classic literature ?
This silence was broken by one of the brethren, who led Pierre up to the rug and began reading to him from a manuscript book an explanation of all the figures on it: the sun, the moon, a hammer, a plumb line, a trowel, a rough stone and a squared stone, a pillar, three windows, and so on.
The earliest example I have come across was in Bahrain, where I found a wall with squared stones on one face backed by courses of smaller stones, enveloped by a render.