What are the properties of limestone? What rock does limestone belong to?

The properties of limestone can be simply understood as the chemical properties of calcium carbonate.

Carbonate rocks with calcite as the main component. Limestone is a sedimentary rock. Sometimes it contains dolomite, clay minerals and detrital minerals, gray, gray-white, gray-black, yellow, light red, brown-red and other colors, the hardness is generally not large, and the reaction with dilute hydrochloric acid is violent.

The structure is more complex, and there are two types: clastic structure and grain structure. The detrital structure is mostly composed of particles, mud matrix and bright crystalline cement. Grains, also known as granular chips, mainly include internal debris, biological detritus and oolitic grains, etc., the mud crystal matrix is a plaster composed of calcium carbonate fines or crystals, and the particles are mostly less than millimeters, and the bright crystal cement is a chemical precipitate filled in the pores between the rock particles, and it is a calcite crystal particle with a diameter greater than millimeters; Grain structure is a crystalline particle formed by chemical and biochemical precipitation.

Lime has excellent properties such as thermal conductivity, firmness, water absorption, impermeability, sound insulation, polishing, good cementation performance and machinability, which can be used directly from raw ore and deep processing applications. Limestone has good processability, polishing and good cementation properties, insoluble in water, soluble in saturated sulfuric acid, can react with a strong acid and form the corresponding calcium salt, and release CO2 at the same time. When limestone is calcined to more than 900 (generally 1000 1300), it is decomposed into lime (CAO) and CO2 is released.

Quicklime is deliquescent when exposed to water, and hydrated lime [Ca(OH)2] is immediately formed, and hydrated lime can be adjusted after being dissolved in water, and it is easy to harden in the air.

Limestone is a sedimentary rock. Limestone is mainly composed of calcite, but it also contains some clay minerals, dolomite and clastic minerals. Limestone has gray-white, gray, gray-black, yellow, brown-red, light red and other colors, the hardness is not very large, and it will have a violent chemical reaction with dilute hydrochloric acid, which belongs to sedimentary rocks.

Features:

The limestone structure is more complex, with two types: clastic structure and grain structure. The detrital structure is mostly composed of particles, mud matrix and bright crystalline cement. Grains, also known as granular chips, mainly include internal detritus, biological detritus and oolitic grains, etc., and the mud crystal matrix is a plaster composed of calcium carbonate fines or crystals, and the particles are mostly less than millimeters.

Limestone contains more than 50% calcite, and there are some magazines such as silt and clay. Most of the limestone formation is related to biological processes, and the limestone formed by the accumulation of biological remains includes algal limestone, coral limestone, and shell limestone.

Limestone belongs to sedimentary rocks. Limestone is referred to as limestone, and it is a carbonate rock with calcite as the main component. Sometimes it contains white marble, clay minerals and detrital minerals, gray, gray-white, gray-black, yellow, light red, maroon-red and other colors, the hardness is generally not large, and there is a violent chemical reaction with dilute hydrochloric acid.

According to the classification of genesis and disturbance, it belongs to sedimentary rocks. <

Limestone is a sedimentary rock. Limestone is referred to as limestone, and it is a carbonate rock with calcite as the main component. Sometimes it contains dolomite, clay minerals and detrital minerals, gray, gray-white, gray-black, yellow, light red, brown-red and other colors, the hardness is generally not large, and there is a violent chemical reaction with dilute hydrochloric acid.

It belongs to sedimentary rocks according to its genetic classification.

1. Limestone (limestone) is referred to as limestone, carbonate rock with calcite as the main component. Sometimes it contains dolomite, clay minerals and detrital minerals, gray, gray-white, gray-black, yellow, light red, brown-red and other colors, the hardness is generally not large, and there is a violent chemical reaction with dilute hydrochloric acid. It belongs to sedimentary rocks according to its genetic classification.

2. Limestone is mainly formed in a shallow sea environment. Limestone can be divided into granular limestone (flowing water transport, sedimentary formation), bioskeleton limestone, and chemical and biochemical limestone according to its genesis. According to the structural structure, it can be subdivided into bamboo leaf limestone, oolitic limestone, leopard skin limestone, mass limestone, etc.

The main chemical component of limestone is caCO3 that is easily dissolved, so stone forests and karst caves are mostly formed in limestone areas, which are called karst terrain.

Limestone is the main raw material for burning lime and cement, and is a flux for ironmaking and steelmaking.

3. The limestone structure is relatively complex, with two types: clastic structure and grain structure. The detrital structure is mostly composed of particles, mud matrix and bright crystalline cement. Grains, also known as granular chips, mainly include internal debris, biological detritus and oolitic grains, etc., the mud crystal matrix is a plaster composed of calcium carbonate fines or crystals, and the particles are mostly less than millimeters, and the bright crystal cement is a chemical precipitate filled in the pores between the rock particles, and it is a calcite crystal particle with a diameter greater than millimeters; Grain structure is a crystalline particle formed by chemical and biochemical precipitation.

Limestone belongs to sedimentary rocks. Limestone is referred to as limestone, and it is a carbonate rock with calcite as the main component. Sometimes it contains dolomite, clay minerals and detrital minerals, and has gray, gray-white, gray-black, yellow, light red, bright bend and brownish red, etc., the hardness is generally not large, and there is a violent chemical reaction with dilute hydrochloric acid.

It belongs to sedimentary rocks according to its genetic classification.