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Marble. Marble belongs to limestone and was formed in long-term geological changes. It is a fine product with delicate texture, beautiful patterns and bright colors, which is mainly used for building and making all kinds of exquisite handicrafts. The 19 peaks in Cangshan, Dali Bai Autonomous Prefecture are all hidden, with many varieties, beautiful colors and good texture, which are the most famous.
Cangshan marble has varieties such as colored flower stone, dolomite, white stone and inkstone. Colored flower stones are characterized by colorful patterns on the white floor. There are yellow, ochre, red, green and other colors, which are changed from primitive algae fossils in the stone, resulting in fantastic stone patterns and natural paintings, like green hills, pines and cypresses, like waterfalls, like birds singing among flowers, like clouds and clouds all over the sky, and the scenery is different, which makes people daydream and marvel. Painted stones were skillfully cut and carefully pondered by artists, and made into painting screens of different floods in Fiona Fang. According to its scenery, it is worthy of master Dan Qing's freehand landscape painting, as if Cangshan Erhai Lake was painted with unique charm, full of business, bright and natural stone color, colorful and precious when displayed indoors. Therefore, colored flower stones are loved by people and regarded as treasures among stones.
Cloudy limestone is a kind of marble, named after the dark gray moire on the gray floor. It is also called splash stone because its pattern looks like water ripples. Dolomite has excellent texture and beautiful color. It is an excellent building stone and is also widely used in making handicrafts. Dolomite is the most abundant and productive marble in Cangshan.
White stone, that is, "Cangshan White Jade", also known as white marble, is a crystal clear white marble. Pure white, crystal clear, is a leader in a wide range of uses.
Marble handicrafts, such as painted platform screen, carved seat screen, table lamp, wine glass, tea box, vase, etc. , famous at home and abroad for its novel shape, smooth and unique style.
Xucun Rock Mass: The internal lithology of the rock mass changes greatly, from granodiorite to adamellite and potash granite. It was formed in the Proterozoic Likou Group with an isotopic age of 9 13 million years.
Granite:
Cizhu rock mass: the lithology is mainly plagiogranite (belonging to tonalite), and its occurrence is generally consistent with that of surrounding rock, with most of the contact boundaries unclear, the marginal migmatization obvious, and some phases in the rock mass unclear. The isotopic age is 410-480 million years, belonging to Caledonian period.
Wuhe rock mass: it is a part of migmatite in the eastern margin of Guangdong-Guangxi uplift, and the exposed strata in this area are sandstone, shale, schist and metamorphic siltstone of Cambrian and Ordovician. The direction of regional fold is consistent with the distribution direction of migmatite zone. The migmatite can be divided into banded and shadowed migmatite and homogeneous migmatite (mixed granite).
Gaotian rock mass: located in Shicheng, Jiangxi Province. The lithology is porphyritic medium-coarse grained biotite potash feldspar granite and porphyritic multi-system plagioclase. The rock mass intruded into the shallow metamorphic Sinian strata, with an isotopic age of 267 million years, belonging to Hercynian period. Its derived granite pegmatite is rich in rare earth, niobium, tantalum and other minerals.
Xinfeng rock mass: it is a large granite base, and the main body is Yanshanian biotite granite. It intruded into the metamorphic sandstone shale series of Lower Paleozoic, and granite invaded for 4 times. The isotopic age is130-1500,000 years.
Guposhan rock mass: it is bedrock and intrudes into Devonian sandstone, limestone, Cambrian hard sandstone and slate. The main body is biotite granite containing brown diorite. It is clearly divided into three stages. The isotopic age is140-1880,000 years.
Xihuashan rock mass: a compound rock mass with multi-stage intrusion. The early main body is divided into porphyritic medium-grained biotite granite and medium-grained biotite granite, and its isotopic age is170-1900,000 years. The surrounding rocks of the rock mass are pre-Cambrian hard sandstone, slate and a small amount of phyllite and schist.
Longdong rock mass: it is mainly composed of biotite granite, and muscovite granite formed by metasomatism is developed in the protruding part of its western end, and the relationship between them is gradually changing. The rock mass intruded into the early Jurassic basic-intermediate acid volcanic rock series, with an isotopic age of10.34 billion years.
Rock body 430: It occurs in limestone and sandstone of Upper Paleozoic in the form of rock plants, and the lithofacies zone of the rock body itself is complete and clear. From bottom to top, it can be divided into biotite granite, zinc-aluminum garnet albite granite, lepidolite albite granite and greisen. Different parts of the complex are accompanied by mineralization of niobium, tantalum, beryllium, tungsten and tin. The isotopic age is 1.32 billion years.
Generally speaking, marble is soft. Marble refers to metamorphic rocks or sedimentary carbonate rocks. Its main chemical composition is calcium carbonate, accounting for more than 50%, as well as magnesium carbonate, calcium oxide, manganese oxide and secondary silica. Marble is a kind of stone with medium hardness, so it is applied to indoor countertops, cylinders and so on. According to its soft chemical properties, it is not suitable for outdoor decoration and ground decoration. (The most famous marble producing area in the world is: Italian name: carrara)
Granite has hard texture, good wear resistance, acid and alkali resistance, corrosion resistance, high temperature resistance, light resistance, frost resistance, friction resistance and good durability, and its appearance color can be maintained for more than 100 years. In addition, the granite plate is rich in color and the plaid pattern is even and meticulous. After polishing, it is as bright as a mirror, with strong texture and gorgeous and noble decorative effect. The decorative style of finely crafted plates is simple and three-dimensional.
Walls, floors, cylinders, etc. Generally used for outdoor decoration.