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      Stone classification

      basalt

      Time:2018-07-24

      The Xuan Wuyan (basalt) is a basic volcanic rock. It is the most important component of the earth's oceanic crust and the moon's moon sea, and also an important constituent of the earth's crust and moon's land. In 1546, G. Agricola first used the term basalt in geological literature. The black rock of Isaacson, Germany. The word "Chinese basalt" is introduced from Japanese. Japan has discovered the black olive basalt in Xuanwu cave, Hyogo Prefecture, hence its name. Basalt is a basic eruption rock. Its chemical composition is similar to gabbro, and the content of SiO2 varies from 45% to 52%. The content of K2O+Na2O is slightly higher than that of intrusive rocks, and the content of CaO, Fe2O3+FeO and MgO is slightly lower than that of intrusive rocks. The mineral components are mainly composed of The basic feldspar and pyroxene are composed of olivine, hornblende and biotite, and the rocks are dark, usually black, sometimes greyish green, and dark purple. A porphyry structure. The stomatal structure and the structure of almond are common. The basalt is the oceanic crust and the earth's crust. The most important component of the moon moon sea is also an important constituent of the earth's crust and lunar land.

      Description

      The Xuan Wuyan (basalt) is a basic volcanic rock. It is the most important component of the earth's oceanic crust and the moon's moon sea, and also an important constituent of the earth's crust and moon's land. In 1546, G. Agricola first used the term basalt in geological literature.
      The black rock of Isaacson, Germany. The word "Chinese basalt" is introduced from Japanese. Japan has discovered the black olive basalt in Xuanwu cave, Hyogo Prefecture, hence its name.
      Basalt is a basic eruption rock. Its chemical composition is similar to gabbro, and the content of SiO2 varies from 45% to 52%. The content of K2O+Na2O is slightly higher than that of intrusive rocks, and the content of CaO, Fe2O3+FeO and MgO is slightly lower than that of intrusive rocks. The mineral components are mainly composed of
      The basic feldspar and pyroxene are composed of olivine, hornblende and biotite, and the rocks are dark, usually black, sometimes greyish green, and dark purple. A porphyry structure. The stomatal structure and the structure of almond are common. The basalt is the oceanic crust and the earth's crust.
      The most important component of the moon moon sea is also an important constituent of the earth's crust and lunar land.
      The bulk density of basalt is from 2.8 to 3.3g/cm3, and the compressive strength of the denser is very high, which can be as high as 300MPa and sometimes higher. The basalt is highly durable and jointed, and the joints are hexagonal.
      Because of its brittleness, it is not easy to pick large stone materials. Because of the common structure of stomata and almonds, although basalt is widely distributed on the surface, it can not be used as decorating stones.

      Basalt crusher: the coarse breakers are usually jaw crusher or counterattack crusher. The medium and fine breakers usually have conical crusher, spring cone crusher, hydraulic cone crusher, hydraulic jaw crusher and compound crusher.
      Different sizes are required for the size and output of the feed.
        


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