Shanxi black is mainly composed of plate-like plagioclase, which is composed of twin crystals. It accounts for 55-60%. The pyroxene is 20-30%, and the amphibole and secondary amphibole are about 5%, and also contain trace minerals such as biotite, chlorite, quartz and potash feldspar.
Shanxi black stone is now widely used in architectural decoration. The Shanxi black stone can be used as a tombstone. The nameplate, the Shanxi black of litchi surface can be used for outdoor shops. The Shanxi black stone of the mushroom surface can be used as the roadside stone. All the places where the building needs stone can be used in the Shanxi black stone. Because of the Shanxi black stone fire caused the appearance of dyeing Shanxi black now, dyeing Shanxi black and dyed still have a certain difference, the two sides have the advantages:
Dyeing Shanxi black stone has a certain price advantage. Now, the cost of dyeing Shanxi black on the market is much cheaper than that of finished Shanxi black. And the quality of stone is also good, and the quality is very good. So dyeing Shanxi black has a certain cost performance advantage.
Partial dyeing of Shanxi black will lead to uneven color. Unlike Shanxi black itself, the natural stone color, dyed Shanxi black because the color is later artificial color, so in the color will be uneven. It is easy for workers who are not skilled in working to make the color uneven. The edges of the plates are stained with dye, so that they are different from the real Shanxi black. But if a good worker, these are not matters. In this case, the finished products are not seen by ordinary people.
Dyeing Shanxi black every year needs protection, and later cost is higher than that. Dyed Shanxi black color is later artificial, so in the long term use must be regular protection, discoloration is easy to appear, so this makes dyed Shanxi black later cost increase. The most important thing is that dyes containing chemicals are harmful to human body, so indoors are not recommended. Shanxi black dyeing and natural Shanxi is still some gaps.
Physical property:
| Granite type | Shanxi black granite |
| Shaw's hardness | 101 |
| Density | 3.01 g/cm3 |
| Flexural strength | 41.6Mpa |
| Compressive strength | 205Mpa |
| Acid resistance | 99.9% |
| Alkali resistance | 99.49% |
| Radiation rate | <16r |
Specification Plate:
1. dimensions: 300 x 300mm 300 x 600mm 400 x 400mm 600 x 600mm 800*800mm or other specified specifications
2. dimensional tolerance: quadrilateral 10mm diagonal + 10mm
3. thickness: 18mm 20mm 25mm 30mm 50mm 80mm 100mm 150mm and other specified thickness
4. quality control: 1). Thickness tolerance: + 0.5mm + 1mm + 1.5mm + 2mm
2). Color: for the same ore export blocks, the same color plate product.
3). Plate surface: no defects, such as black gallbladder, crack, ray, yin and Yang, stain, angle and so on.
4). Processing: the horizontal section is smooth and straight, without burr, disintegration and angle missing angle and so on.
Specification Strip:
1. dimensions: 60 heads, 70 heads, 80 heads, 90 heads and other sizes
2. quality control: width: 60 headboard selection more than 63cm, 70 headboard selection 73cm above, this analogy.
3. color: the same ore mouth, uniform color.
4. plate surface: flat pattern, color consistent, no black bile, cracks, rays, yin and Yang, pit and other obvious defects.
5. Flatness: the flatness of the plate is not more than 0.5mm
6. glossiness: a polished mask has a mirror gloss that can clearly reflect the scene, with a glossiness of not less than 80
shanxi black granite Quarry and block
