SCROLL
Detail Slab
to overview

Padang Hell

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

Very fine grained, bright to white grey granite. The main component is white grey potassium feldspar followed by clear transparent quartz crystals. Black to black-grey biotite (dark mica) occurs as fine flakes, oblong fibres or nest-like and generate contrasts in this way. Overall, Padang hell is uniformly bright in look. The stone can be combined well with black or dark-grey materials. A possibly rough surface is generated by short and strong heating of the top crystal layer, whereby this breaks away along its growth lines from the still cooler crystal layers underneath. The rough surface, generated in this way, is largely even, but not always homogenous, which is due to the differently hard mineral mixture parts inside the stone. These react different from each other when heated, which can lead to a somewhat uneven surface. 

Petrogenesis

During the Precambrian Period (primeval earth period), on the south-east Chinese continental plate acid, feldspar-rich granite melts pushed up from the transitional zone between earth crust/earth mantle along lines of volcanic activity into the upper earth crust. They did not reach the earth surface but solidified uniformly as mushroom-like elevated plutonic rock complexes. Cooling was very even but relatively rapid, so that homogeneous but very fine crystal grain sizes were produced.

Hardness Hard Stone
Structure Type Homogeneous Structure
Synonyms Padang Light, Light Grey, G633
Group Plutonic rock - Plutonite
Petrographic Assignment Granite
Age 800 million years (Precambrian)
Colouring Minerals White-grey feldspar, transparent quartz, black biotite
Average Hardness 6 (according to Mohs's hardness scale 1-10) / Natural stone
Deposit China - in the province of Fujian