Specification :

We have owner black granite quarry-Gold diamond black.It' s a newest black granite materials, best price and quality, seek the agent in world.

I introduct the newest black granite quarry " gold diamond black" , I hope seek the agent in your market.

It boasts beautiful designs, excellent hardness, clean surface, homogeneous colors, whose shiny black contains some unique silver crystal spots, like stars in the evening sky, it is now the best potential substitute for black stone collections available on the market.

The quarry have three hill.Nearly about 1000 meter.The quarry cover 0.75KM2.

The granite have 77% plaginclase, 13% pyroxene, 7-9% olivine, less than 1% biotite, 1% magnetite, less than apatite.Because feldspar and pyroxene, olivine alternate with collocate.So have the oolitic texture pattern.

The granite: anti-press intensity 1290KG/ cm2

anti-fold intensity 280KG/ cm2

shearing strength 427KG/ cm2

density 3.12g/ cm2

water absorbtion 0.08%

acid resistance 99.87%

alkali resistance 100%

glassiness degree 105-120

specific radioactivity internal exposure index ( Tra) 1.18

external exposure index ( Tr) 0.033