Etymologically, the word porphyry comes from the Latin “porphyra”, which means “purple stone.”
This terminology was utilized by Egyptians and Romans in order to assign a specific red volcanic stone that was much more resistant and harder
than the granite itself.This natural stone had kept throughout the centuries an immense historic, symbolic and esthetical meaning, remaining as
a unique material for paving and coating. Its physic characteristics and the cohesion of the minerals that formed it, allow to the building to be
eternal even under the most adverse climatic conditions.
Porphyry Paving Cubes.
Data.
Size
Thickness
Kg/m²
Pieces/m²
10x10
2/4
70
85
10x10
4/6
102
85
10x10
6/8
138
85
6/9
2/4
70
132
6/9
4/6
88
111
4/6
4/6
90
225
6/8
6/8
127
169
Porphyry Tiles.
Width / Tile: - 10, 15, 20, 25, 30, 35 ó 40 cm.
Lenght / Tile: Free or Fixed.
- Thickness -
- Kg/m² -
1/3
70 kg
3/6
110 kg
5/8
130 kg
Porphyry Flagstone.
Size
Thick.
Kg/m²
Pieces/m²
Normal
1/3
54
15/30
Big
2/4
75
30/50
Palladium Especial
3/6
100
40/70
Portuguese Black Slate.
Bulk specific gravity --- 2,81 gr/cm3
Absorption coefficient --- 0,45 %
Compression strength ------ 656 kg/cm2
Bending strength --- 582 kg/cm2
Frictional wear test --- 8.3 mm
Impact test --- 110 cm
Spanish Black Slate.
Bulk specific gravity --- 2,77 gr/cm3
Absorption coefficient --- 0,24 %
Compression strength --- 103,65 kg/cm2
Bending strength --- 43,93 MPa
Frictional wear test --- 4.40 mm
Impact test --- 119,70 cm
CaCO3 --- 0,70%
Basalt.
Bulk specific gravity --- 2,680 gr/cm3
Absorption coefficient --- 0,68 %
Compression strength --- 181 MPa
Bending strength --- 26.7 MPa
Frictional wear test --- 1,92 mm
Impact test --- 126 Kg.m/M2
Branosera Sandstone.
This sandstone is being from centuries for pavements of public squares and streets,
emphasizing its old and historical aspect.
Thanks to its non-slip properties and resistance to the marine saltpetre, it is very used in maritime walks.
It is available in rubble-stone for walls, rustic paving stone, flagstones as well as cut-to-size tiles for pavements and coatings,
always with natural face finished.
Muras Quartzite – White & Red Mix.
Quartzite with great architectural beauty, used in the project of the architect Peter Einsenman,
for Ciudad de la Cultura (72.000 m2) located in Santiago de Compostela .
Bulk specific gravity: 2.64 gr/cm3 mm
Absorption coefficient: 0,25 %
Bending strength: 11.38 MPa
Rustic Quartzite Gold Brown & Green Mix.
Bulk specific gravity: 2,72 gr/cm3
Absorption coefficient: 0,42 %
Compression strength:
Bending strength: 18.5 MPa
Frictional wear test:
Impact test: 85 cm
Rustic Quartzite Blue & Blue Mix.
Bulk specific gravity: 2,72 gr/cm3
Absorption coefficient: 0,06 %
Compression strength:
Bending strength: 19 MPa
Frictional wear test:
Impact test: 90 cm
Moss Stone.
The Moss Stone is located disperses in the surface of mountains and it is applied directly in the works
to which it is destined in its natural condition. Thanks to its granitic origin and due to this stone is exposed to the weather inclemencies,
its surface is covered of moss and lichens. Its format is natural and irregular and its strong rustic aspect allows to be used in diverse works,
basically decorative (Landscape, Pavements, Walls, Coatings, Restoration...)
Portuguese Calçada Paving - White.
The Portuguese mosaic, commercially known like Portuguese Calçada, is a type of splitted stone cubes, generally limestone,
specially used for street pavement as well as public spaces in general.
Portuguese Calçada Paving - Black.
The more usual colors are the black, white and pink, and the measures of the cubes are from 5 cm. to 15 cm.
This allows to use several combinations in the execution of paving works (Emblems, Symbols, Anagrams and any type of customized drawing).
Portuguese Calçada Paving - Pink.
Portuguese Calçada has been used from the 19th Century and are still present in cities with history and tradition as Lisbon
(one of the oldest cities of Europe) with its downtown streets and squares, where the artistic and traditional beauty of the Portuguese Calçada can be appreciated.
