It is a sedimentary rock consisting mainly of calcium carbonate (CaCO3) is, it can contain clay, hematite, siderite, quartz, etc., that will vary its colour and consistency. It is less hard than copper and reacts with effervescence to acids such as hydrochloric acid.
It is a sedimentary rock of contrast of variable colour, containing clasts with a size to a grain of sand. The sandstones contain interstitial spaces between their grains that are filled with cement of silica in the oldest rocks.
Both have a high resistance to fire and excellent anti-slip properties. They can be used both indoor and outdoor. Granilouro works with a multitude of different kinds of limestone and sandstone from around the world, covering a wide range of colour and veining. Available in multiple finishes: sawn, honed, polished, sandblasting, shot blasting, Bush-hammered, flamed, aged. These are limestone and sandstone peak, the following images link to the technical characteristics of each material:
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