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- Beige Pirineo
Beige Pirineo
The Beige Pirineo stone is a uniform-grain sandstone (litoarenita). Like the Azul Pirineo variety, it is highly suitable for pavements and coatings due to its anti-slip characteristics, its low absorption coefficient, and its low abrasive wear.
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Grain-supported textured and without matrix sandstone which has very fine grain (grains’ average diameter is 100μm). The detrital particles correspond to stone fragments (63.6%, of which: 37.8% are calcitic; 12.6% are dolomitic; 12.8% are quartzitic and limolitic; <1% are silexitic), angulated quartz (29,3%), opaque and ferruginous particles (5,0%), potassium feldspar (1.7%) and in accessory proportions, muscovite, rutile, tourmaline and glauconite. The porosity can't be appreciated.
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Geographycally, the Pyrenean Beige rock quarry is located in Alastuey municipality, in the Aragonese Pyrenees. Geologically, the exploited materials correspond to the Tertiary formations of the South-Pyrenean Zone and more concretely in the Average Depression.
The exploited materials were originated with the change in the stress regime that took place from the superior Cretaceous and caused by the African, Iberian and European plates’ convergence which manifested itself in the Pyrenees during the foreland basins’ genesis from the inferior Eocene. The exploited materials belong to the Campodarbe formation of the superior Eocene (Biarritzense). It is a continental tertiary formation, of fluvial type, that forms part of a superior order’s unit, the Guarga's sinclinory. This is constituted by an alternation of sandstones and fluvial lutites.
These are levels of sandstone up to two meters of power, that are transported to OLNASA’s quarry in Uncastillo for their transformation and commercialization.
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Natural stone types
Beige Pirineo
