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 basic mass of this rock is a very fine mixture of completely transparent, colourless quartz, as well as white feldspar. The only decorative elements is very small, light brownish pigmented feldspar, as well as enriched biotite-mica in thin, dark, parallel stripes. It is almost as light as marble and has the usage characteristics of granite due to its mineral composition!
Gneiss is a rock, which underwent a structural, in most cases also material metamorphosis in the deeper ranges of the earth crust under high pressures and temperatures. The rock has been compressed by collision of the continent plates und the minerals were given a direction orientation. Due the folding up of mountain ranges, combined with this, the rock complexes were pressed upwards and exposed. After the erosion of covering, kilometres-thick layers, lasting for millions of years, the rock was exposed on the earth surface.
|Structure Type||Slab with Irregular Pattern|
|Age||570 Million years (Pre-Cambrian)|
|Colouring Minerals||White feldspar, black biotite-mica|
|Average Hardness||6-7 (according to Mohs's hardness scale 1-10) / Natural stone|
|Deposit||India, Andhra Pradesh|