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Aurora

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.

Petrography

Migmatite means as much as "Mixed gneiss?. This rock consists in principle like granite, of feldspar, quartz and black mica (Biotite). The minerals are however unevenly distributed, which is why also bright, low in mica and feldspar-rich zones exists beside the directed dark (rich on mica) parts. 

Petrogenesis

Migmatite is generated in the deepest areas of the earth crust or in the root zone of high mountains under high pressure and temperature, which partially melt the rock.

Hardness Hard Stone
Structure Type Slab with Irregular Pattern
Synonyms Aruba, Aruba Tropical, Indian Aurora, Indora
Group Metamorphite
Petrographic Assignment Gneiss - migmatite
Age 570 m. years (Pre-Cambrian)
Colouring Minerals Dark areas: Black biotite - red areas: reddish feldspar (by hematite)
Average Hardness 6-7 (according to Mohs's hardness scale 1-10)
Deposit India - Hyderabad - Nizamabad