Name | CALCITE |
Synonyms | CALCITE Calcite (Ca(CO3)) TIANFU-CHEM CALCITE Limestone total dust Calcite (Ca(CO3)) (9CI) Calcite, naturally occurring mineral, grains, approximately 1.5-4.8mm |
CAS | 13397-26-7 |
InChI | InChI=1/CH2O3.Ca/c2-1(3)4;/h(H2,2,3,4);/q;+2/p-2 |
Molecular Formula | CH4CaO3 |
Molar Mass | 104.12 |
Density | 5.61 g/cm3(Temp: 17 °C) |
Melting Point | 662 °C |
TSCA | Yes |
is a kind of carbonate mineral, its chemical composition is cac03. The crystal is often a complex three-party partial triangular surface or rhombohedral and hexahedral, and the aggregates are mostly granular, block, Bell milk, oolitic, fibrous and crystalline clusters. Glass gloss, transparent to translucent. Usually colorless, milky white, containing impurities are dyed into a variety of colors, sometimes with Halo, which is colorless and transparent crystals called Iceland spar, glass gloss. Mohs hardness 3, density 2.6~2. 9G/c II 13, brittle. When cold, dilute hydrochloric acid bubbled sharply and CO2 was released. The pure and transparent one is called Iceland and spar and has birefringent properties.
calcite is used as a flux in the metallurgical industry and in the construction industry for the production of cement and lime. Iceland spar is an advanced material for making polarizing prisms. Because of its birefringence, Iceland spar is often used for polarizing prism, such as cut in a certain way into a column, can be used as the prism of the microscope, to detect the optical properties of minerals.
EPA chemical information | Information provided by: ofmpub.epa.gov (external link) |
description | calcite is a calcium carbonate mineral, which is the most common natural calcium carbonate. Therefore, calcite is a widely distributed mineral. Calcite has a variety of crystal shapes. Their aggregates can be clusters of crystals, or they can be granular, massive, fibrous, bell-milk, earthen, etc. You can get a lot of square fragments by tapping calcite, hence the name calcite. Calcite is one of the most widely distributed minerals and is the main component of limestone and marble. Travertine can be deposited in the spring water, and it is often a secondary mineral in the igneous rock. In the almond hole of the basalt flow, the cracks of the sedimentary rock are often filled with calcite to form veins, or through biological effects, Produced in the form of shells or rocks. |
use | calcite is used as a flux in the metallurgical industry and used to produce cement and lime in the construction industry. When calcite is added to glass production, the resulting glass will become translucent and is suitable for making glass lampshades. calcite can also be used as medicine, has the effect of clearing away heat and removing dampness; Tongmai detoxification, etc., can treat chest heat and qi, jaundice, etc. I believe that ore therapy believes that calcite has the effect of stabilizing emotions, and some people believe that calcite balls have the effect of gathering wealth. |
shape and color | pure calcite (iceland stone) is colorless and transparent, relatively rare, and most of them are milky white. If it contains iron, zinc, cobalt, manganese, copper and other elements, it will appear light yellow, light red, purple, brown and black. |