Porphyry: an ideal material for slabs
Porphyry is a particular type of volcanic rock belonging to the "Atesina Porphyry Platform", an
enormous complex of volcanic rocks that extends into the Trentino-Alto Adige region.
These rocks, extremely varied and differentiated, both as a chemical composition and as a form of
formation, are the result of an intense volcanic activity started 260 million years ago in the Permian
period, and continued for several million years with a continuous repetition of eruptive phases and
Among the various methods of deposition of these rocks, the so-called ignimbrites take on
particular importance, as these are the ones that gave rise to the "porphyry". These are flows of
liquid-gaseous mixtures with thicknesses generally ranging from 5 to 20 meters and with a fairly
constant chemism, up to the so-called ignimbritic unit, which reaches hundreds of meters thick.
Porphyry slabs of various sizes
The irregular slabs are made up of natural r aw porphyry slabs from the quarry of various sizes and
thicknesses. Depending on these characteristics, it is produced and selected in the following types:
- slabs of normal porphyry on pallets 2-6 cm
- slabs of porphyry normal thin type 1-3 cm
- slabs of porphyry normal giant type 2-6 cm
- slabs of thin giant porphyry type 1-4 cm
Depending on the type, the slab is supplied and packaged on pallets with variable weight from to. 1.2 to
1.8 each, tied with a nylon hood.