Towards the late 800's in the quarries of our territory was introduced a new technique: the twisted wire , which moved amotor allowed to cut marble from the mountain.
The helical wire diameter was approximately 5 mm in size was made by a twisted form of three small steel cables With the characteristic sense of change of screwing every 50 meters, so that the cutting of marble happen right. This wire was a length of about 1000 meters, passed on the marble be cut and with a mixture of water and abrasive silica sand cut marble. It was not however the wire to cut the rock, its only function was to carry in the wake twisted the mixture of water and Silica sand.
Helical Wire
There was a visible change landscape: the mountain was not destroyed more Leaving piles of rubble, but literally cut, engraved with precision.