What is hydromica

We all understand that mica is a kind of rock-forming mineral. The most commonly used in industry is muscovite, followed by phlogopite. Its widely used in the chemical industry such as building materials industry. So what is hydromica? What are the main sources of hydromica? We will introduce you in detail below.

Samarium is a general name for hydromica (also known as Illite) minerals. The chemical composition of hydromica is mainly hydrated aluminum potassium silicate Kal2{(Al,Si)Si(3)O(10)}(OH)(2)·nH(2)O, often containing iron, manganese, nickel, Calcium, potassium, sodium and other elements and quartz and other debris. The hydromica is monoclinic, and the single crystal is scale-like and white. The hydromica aggregate crystals are finely scaly, earthy or densely packed, without swelling and plasticity. Under a polarizing microscope, the refractive index is lower or slightly higher than the gum, and birefringence is low to moderate.

The chemical composition of hydromica is lower in potassium and higher in water content than mica, and is a transitional product of mica minerals to smectite minerals. Usually scale-like, with a pearl luster, poor elasticity than mica, a creamy feeling. It is the main mineral component that makes up clay, and it mainly includes minerals such as hydro Muscovite (illite) and hydrobiotite.

The name of hydromica is Limu, which is mainly produced in Qinghai, Shanxi, Henan and Jiangsu. The hydromica clay rock is used as a medicine. The hydromica plant morphology is the most common type of clay mineral. Claystones have a sheet structure, which is produced in layers and formed by exogenous sedimentation. It is a kind of colored grease. Decomposed from aluminous minerals, often symbiotic with iron ore. The resulting samples have colloidal penetrating annuli of "eyes" like iron oxide and ferric hydroxide and manganese oxide, probably in the post-genetic stage of diagenesis, colloidal precipitation of iron oxides and ferric hydroxides and manganese oxides and adsorption of clay minerals. The effect is formed by penetrating bedding. Therefore, the name of Tibetan medicine is called "sheep eye stone."

The medicinal product of hydromica is irregularly shaped, delicate, sticky, and tasteless. The pure color is white, because the contained impurities are different, the color can be light yellow, light gray, light red, light green, or light brown. Compact, matt or waxy luster, but thin scales can be pearl luster. Low hardness, generally around 1. The density is 2.61 to 2.68 g/cm3. During the heating process, the adsorbed water is first lost at a low temperature; there is a strong ion exchange and adsorption member. The hardened or ceramic-like small pieces are hard and brittle, and the cross-section is lighter than the surface.

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