The close-up view of each stone type shows a relatively true image of the crystalline structure and the colouring. This is suitable for grained slabs to a limited extend only. In regard to the colour matching, please take an original sample of the stone from your furniture store as a basis.
Andeer orthogneiss has a green to green-white basic shade and shows strong vein and slate structure. The indicated fine bands occur mainly from parallel arrangement of the oblong to ellipsoid phengite and chlorite minerals. Phengite is green mica, chlorite is green magnesium silicate. Quartz occurs light grey transparent in the form of clearly recognisable single crystals. Apart from this, epidote and feldspar occur to a lesser degree. Andeer has been processed since centuries and is one of the most popular natural stones in Switzerland.
When granite primary rocks are subjected to metamorphosis, orthogneiss is generated. Oblong, crystal forms in the shape of ellipsoid veins are formed, so that a direction-orientated grain structure is generated due to very high pressure loads in certain directions.
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