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.
The extraordinaritry light gneiss consists largely of a fine crystalline mixture, made up of white feldspar and colourless transparent quartz. Black biotite mica is enriched in bands, the mica scales are clearly direction orientated.
Gneiss was generated during the upfolding of the Alps, when high pressure and temperature had an effect on the rock layers. Before the metamorphosis occurred, this was clay-sand sediments.
|Structure Type||Slab with Irregular Pattern|
|Age||290 million years (Perm)|
|Colouring Minerals||White feldspar, black biotite|
|Average Hardness||6 (according to Mohs’s hardness scale 1-10)|
|Deposit||Italy / Piedilago, north of Domodossola|