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- Gris Moncayo
Gris Moncayo
The Gris Moncayo stone is a highly compacted, with low porosity, greyish sandstone. This stone is quite uniform. Its values derived from several technological studies have shown a high suitability for pavements and coatings.
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Absorption. UNE-EN 13755:2002
2,0%
Open porosity. UNE-EN 13755: 2002
8,1%
Determination of the bulk density. UNE-EN 1936:2007
2420 Kg/m3
Resistant to bending. UNE-EN 12372:2007
10,5 MPa
Resistant to bending after freezing. UNE-EN 12372- 12371
10,6 MPa
Resistant to compression. UNE-EN 1926:2007
131 MPa
Resistant to compression after freezing. UNE-EN 1926-12371
145 MPa
Resistant to slippage without polishing. UNE-EN 14231: 2004
90
Resistant to erosion provoked by abrasion. UNE-EN 14157: 2005
20mm
Determination of the resistance during salts' cristallization UNE-EN 12370:1999
0,02%
Petrography study UNE-EN 12407:2001
Grauvaca Feldespática
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Petrographically, the sample is described as a sand, classified like Feldspathic Grauvaca (Pettijohn, 1987), of grain-supported texture. The grain-supported skeleton is made of monocrystalline quartz (58%), partially altered feldspars (6%) and fragmented lithics transformed into secondary filosilicated matrix (5%).
Iron oxides (5%), muscovites (6%) and biotites (1%) are also identified. The cement is siliceous 5% of sintaxial type. Overall, it is a stone with little porosity <1% and with little discontinuities. Primary matrix 12% is filosilicated and includes part of the iron oxides.
The quartz clastos’ morphology is subangular with a low sphericity and an average size of 0.21 mm, whereas the feldspars’ clastos of feldspars are subrounded and with an average size of 0.16 mm. The selection is good 1,2-1,4. The contacts are predominantly precise.
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Natural stone types
Gris Moncayo
