Our Porma Gold limestone is born close to the mountains to contribute warmth and serene beauty to life. It´s a very fine and versatile natural stone that admits a wide range of finishing on products: saw cut, sandblasted, polished, honed, rough-split and bush-hammered. Its cream color is much appreciated, providing elegance and tranquility at home. Besides, this tone is also perfect for outside works in historical and monumental environments.
Greyken limestone is our newest material. Its dark grey tone is very homogeneous. It´s very hard stone and it assures a very compact final results. it´s perfect for rustic finishing. We also have a new quarry with wide reservations.
This natural limestone gives a classy look to any project, the polished finish especially creates a feeling of grandness. The natural whitish colour of the tiles are enhanced by the slight glitter within the variations. Luga is suitable for inside and outside as well as the possibility of mosaics, stairs and pool edgings. Limestone is a natural material and will vary in appearance from tile to tile.
White-cream colored rock, with abundant centimeter-sized fossils, with some porosity, and very effervescent when attacked with cold CIH. Carbonate sedimentary rock of marine origin, formed by a large quantity of organic fossil remains in a micritic calcite matrix with incipient recrystallization. The Organic fossil fragments are composed of a microcrystalline calcite of the micritic type (grain size less than 5 microns), calcite of the matrix to a large extent also micritic, observing recrystallization where the Calcite reaches sizes between 0'0150 and 0'0625 mm.
Petrographic Examination (UNE-EN 12407:2007)
Intraespartite (Limestone)
Water Absorption (UNE-EN 13755:2008)
Mean Value 3,10%
Apparent Density and Open Porosity (UNE-EN 1936:2007)
Mean Value of Apparent Density 2.450 Kg / m3 Mean Value of Open Porosity 8,40 %
Frost Resistance (120 cycles) (UNE-EN 1271:2011)
Mean Value of Flexural Strength 15,6 MPa
Flexural Strength (UNE-EN 12372:2007)
Mean Value of Flexural Strength 19,3 MPa
Compressive Strength (UNE-EN 1926:2007)
Mean Value of Compressive Strength 119 Mpa
Water Absorption by Capillarity (UNE-EN 1925:1999)
Mean Value of Coefficients 10,6 g / m2s0,5
Density
2440 Kg/m3 UNE-EN 1936
Open porosity
2,4 % UNE-EN 1936
Water absorbtion
0.2 % UNE-EN 13755
Absorbtion
21,0 mm. UNE-EN 14157
Compression
179 MPa UNE-EN 1926
Flexural strength
14,3 Mpa UNE-EN 12372
Frost (56 cycles)
16,1 MPa UNE-EN 12371
Petrania