Inside marble quarry, Verona, Italy, 2022.
Mining marble and stone chips.
Sorting stones by colour and size.
Boulders are crushed into stone chips, also known as, aggregates, of various sizes, with the largest range being 40 mm.
For terrazzo with resin binder (as opposed to cement) the chips must be fully dried after washing.
An opto-electronic system, with high-speed cameras and an air nozzle deflecting barrier, fully removes any impurities from the chip mass and sets aside the whitest particles of the Carrara marble to be ground into the base powder, aka Calcium Carbonate.
The granules are passed through a series of sieves and are separated into different size grades, with the smallest range being 00.00 - 0.15 mm and the largest 40 mm.