What is the texture of granite?
Granite is strong and durable, and the texture does not look as fine as marble, but as rough as oatmeal, which is a typical characteristic of granite. Based on the texture, we can know its composition and structure. It is composed of mica, feldspar and silicate. Granite is a type of volcanic rock, which is a rock formed by solidifying molten magma and slowly cooling under tremendous pressure.
Granite is hard and dense, has high strength, is weather-resistant, corrosion-resistant, wear-resistant, and has low water absorption. Its beautiful color can be preserved for more than 100 years, so it is a good building material, but it is not heat-resistant.
The structural characteristics of granite are: fine-grained, medium-grained, coarse-grained granular structure, or point-like structure, uniform and fine particles, small voids (porosity is generally 0.3% ~ 0.7%), and low water absorption (water absorption is generally 0.15% ~0.46%).
Common granite products basically have no colored stripes, only colored spot patterns. This is the miraculous workmanship of nature that creates all these forms of granite.
Granite stone has no colored stripes, only colored spot-like patterns. It is characterized by fine and uniform texture, star-shaped mica highlights and sparkling seasonal crystals. The finer the mineral particles, the better, indicating a dense and solid structure.
What are the texture characteristics of granite?
1. Granite has a dense structure, high compressive strength, low water absorption, high surface hardness, good chemical stability, and strong durability, but poor fire resistance.
2. Granite has a fine-grained, medium-grained, coarse-grained granular structure, or point-like structure, with uniform and fine particles, small voids (porosity is generally 0.3% ~ 0.7%), and low water absorption (water absorption is generally 0.15% ~ 0.46%), good frost resistance.
3. Granite has high hardness, Mohs hardness is about 6, density is between 2.63g/cm3-2.75g/cm3, compressive strength is between 100-300MPa, among which fine-grained granite can be as high as 300 MPa, and flexural strength is average Between 10-30 MPa.
4. Granite has a high roughness rate, can be processed in a variety of ways, and has good splicing properties. Moreover, granite is not easily weathered and can be used as outdoor decorative stone.
Extension data: Granite is an intrusive rock (SiO _ 2 GT _ 66%) in acidic magmatic rocks. It is the most common rock of this type and is mostly light red, light gray, or off-white. Medium-coarse and fine-grained structure, blocky structure. There are also some variegated structures, globular structures, and gneiss-like structures.
The main characteristics of granite are as follows:
First, the hardness is high, the keys sound crisp and clear, and the marbles sound heavy and dull.
Second, the particles are evenly distributed. Because granite is formed from igneous rock or molten magma that condenses under high temperatures and pressures, the materials within it are evenly distributed.
Third, it is resistant to strong acids and alkalis.
Fourth, the glossiness is higher. The polishing effect is far better than that of marble.