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 white-grey ”eyes” consist of a fine to medium sized grain mixture of feldspar and quartz. They are framed by fine mica layers (a lot of silvery shining muscovite, only a little dark biotite).
Paragneiss has its origin in sandy-clay seabed deposits. The layers were compacted to clayey sandstones or sandy clay slate. This attractive glittering rock from direction-orientated feldspar, quartz and mica was generated only under the high pressure and temperature during the earlier folding up of a mountain range.
|Structure Type||Homogeneous Structure|
|Age||> 570 million years (Precambrian)|
|Colouring Minerals||White feldspar, light grey-transparent quartz, silvery shining muscovite mica|
|Average Hardness||7 (according to Mohs’s hardness scale 1-10)|