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 individual minerals are very difficult to determine in the very fine crystalline structure, even under a microscope. The bulk consists of colourless transparent crystals of alkali feldspar (sanidine), but also small amounts of quartz are included. The proportion of dark minerals is very small.
The fine crystalline structure with single, well developed crystals is typical for vulcanite. This was generated, when glowing liquid magma reached the earth surface from the depth through cracks in the earth crust and solidified there within a short time.
Cracks occurred due to cooling of the already solidified melt because of the shrinking of the rock body. Mostly hexagonal columns were generated in this case. In a section occurs a texture reminding of the shell of a turtle.
|Structure Type||Slab with Irregular Pattern|
|Group||Metamorphic Rock Type|
|Age||20-60 million years (Tertiary)|
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