Basalt: Basically erupted rock. The main minerals are pyroxene and basic plagioclase, while the secondary minerals are olivine and amphibolite islands. Most of them are gray black or black, usually with spotted structures. The porphyritic crystals are olivine, pyroxene, and alkaline plagioclase. The matrix is cryptocrystalline or semi crystalline, composed of microcrystals or glassy materials.
They usually have pore and almond structures, and sometimes columnar joints are very developed. According to the trace mineral composition, it can be divided into olivine basalt, perilla oil basalt, magnetite basalt, etc. According to the structure, it can be divided into coarse-grained basalt, fine-grained basalt, and thrust basalt. According to their structure, they can be divided into porous basalt, almond basalt, slag basalt, and dense basalt.
Granite: a type of deep-seated acidic igneous rock. Commonly known as granite. The silicon dioxide content is greater than 70%. Light colored, gray, and red meat are more common. It is mainly composed of black minerals such as quartz, feldspar, and a small amount of biotite. The corresponding content is 20% to 40%, with more alkaline feldspar than plagioclase, accounting for more than 2/3 of the total feldspar. Alkaline feldspar is a variant of potassium feldspar and sodium feldspar, while plagioclase is mainly sodium feldspar or feldspar. The main black mineral is biotite, with a small amount of amphibole. Has granite structure or porphyritic structure. Basalt stone is also a good building material for transportation construction, especially in buildings such as roads, railways, ports, and airport runways. It has the characteristics of high compressive strength, low crushing value, wear resistance, low water absorption, weak conductivity, strong corrosion resistance, and strong asphalt adhesion. This is internationally recognized as a solid foundation for the development of railway and road transportation.
The above introduction is about the difference between basalt and granite. In the future, if you want to learn more about basalt stones, you can continue to follow us.