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.
Ivory coloured feldspars, in 3-8 cm crystal clumps, make up 60% of the rock with a further 30% composed of grey transparent quartz. Under bright light, shining at an angle, a certain degree of cracking is visible, which occurred during the metamorphosis. Well-rounded crystals of red garnet have lodged in the black streaks of biotite.
Original granite got into a greater depth where, without any addition of material or significant change of mineral content, it was re-crystallised and the un-aligned structure was changed into an aligned structure. This is particularly noticeable in the long, drawn out layers of biotite mica. The approximately 1 billion years old rock was lifted at a later time and exposed.
|Structure Type||Homogeneous Structure|
|Synonyms||Bianco Samoa, Samoa Light (Topazio White)|
|Age||1 billion years (Precambrian)|
|Colouring Minerals||White-beige feldspar, grey-transparent quartz, black biotite, red garnet|
|Average Hardness||6 (according to Mohs's hardness scale 1-10) / Natural stone|
|Deposit||Brazil, Barra de Sao Francisco/Espirito Santo|