Porphyry Stone

Porphyry is a volcanic rock formed from a slow cooling process of igneous material along several million years commonly found in the earth's mantle. The chemical and mineral composition of the stone and its distinctive structure, ie: high compression breaking point and heavy traffic resistance, makes it one of the most durable paving and facing material available in the world.

Historical evidence of early use of porphyry has been found in a Bronze Age settlement. Historians also found proof that indicates that porphyry stone was used by ancient civilizations like Assyrian, Babylon, Egypt and Rome. The most widely known porphyry type was the red porphyry, easily recognized by a purple color groundmass (in Latin, porphyry means purple).

The porphyry rock is mostly used by the building construction industry for flooring, paving and traditional and ventilated-wall facing due to its impressive technical conditions:

Hardness: compressive strength more than 30,000 1b psi
Slip Resistant: the natural surface makes it non slippery
Oil/Stain resistant: after a couple of rainfalls, it is clean again
Durable: no maintenance required, lasts for more than 100 years
Beauty: earth-tone colors, suitable for any location

Packaging

Porphyry elements are packed in different ways according to their type and size. Usually small items like cobblestone, smolleri or binderi are packed in about 2 ton wooden crates wrapped with mesh or plastic covers. Cobblestones also come in 15/17 ton plastic bags.
Other elements like kerbs, sills and thresholds are packed in shrink-wrapped pallets.
Some finishing elements like treads and risers are packed on tress led pallets.