Calamine is a historic name for an ore An ore is a type of rock that contains minerals with important elements including metals. The ores are extracted through mining; these are then refined to extract the valuable element of zinc Zinc , also known as spelter, is a metallic chemical element; it has the symbol Zn and atomic number 30. It is the first element in group 12 of the periodic table. Zinc is, in some respects, chemically similar to magnesium, because its ion is of similar size and its only common oxidation state is +2. Zinc is the 24th most abundant element in the. The name calamine was derived from the Belgian Belgium (pronounced /ˈbɛldʒəm/ , BEL-jəm), officially the Kingdom of Belgium, is a country in northwest Europe. It is a founding member of the European Union and hosts its headquarters, as well as those of other major international organizations, including NATO. Belgium covers an area of 30,528 square kilometres (11,787 sq mi), and it has a town of Kelmis, whose French French is a Romance language spoken as a first language by about 136 million people worldwide. Around 190 million people speak French as a second language, and an additional 200 million speak it as an acquired foreign language. French speaking communities are present in 57 countries and territories. Most native speakers of the language live in name is "La Calamine", which is home to a zinc mine. In the 18th and 19th century large ore mines could be found near the German A region named Germania, inhabited by several Germanic peoples, has been known and documented before AD 100. Beginning in the 10th century, German territories formed a central part of the Holy Roman Empire, which lasted until 1806. During the 16th century, northern Germany became the centre of the Protestant Reformation. As a modern nation-state, village A village is a clustered human settlement or community, larger than a hamlet with the population ranging from a few hundred to a few thousands , Though often located in rural areas, the term urban village is also applied to certain urban neighbourhoods, such as the West Village in Manhattan, New York City and the Saifi Village in Beirut, Lebanon, of Breinigerberg.
During the late 18th century it was discovered that what had been thought to be one ore was actually two distinct minerals A mineral is a naturally occurring solid chemical substance that is formed through geological processes and that has a characteristic chemical composition, a highly ordered atomic structure, and specific physical properties. By comparison, a rock is an aggregate of minerals and/or mineraloids and does not have a specific chemical composition:
- Zinc carbonate In chemistry, a carbonate is a salt of carbonic acid, characterized by the presence of the carbonate ion, CO2−3. The name may also mean an ester of carbonic acid, an organic compound containing the carbonate group O=C2 ZnC Carbon is the chemical element with symbol C and atomic number 6. As a member of group 14 on the periodic table, it is nonmetallic and tetravalent—making four electrons available to form covalent chemical bonds. There are three naturally occurring isotopes, with 12C and 13C being stable, while 14C is radioactive, decaying with a half-life of O Oxygen (pronounced /ˈɒksɨdʒɨn/, OK-si-jin, from the Greek roots ὀξύς (acid, literally "sharp", from the taste of acids) and -γενής (-genēs) (producer, literally begetter), is the element with atomic number 8 and represented by the symbol O. It is a member of the chalcogen group on the periodic table, and is a highly3 or smithsonite and
- Zinc silicate A silicate is a compound containing a silicon bearing anion. The great majority of silicates are oxides, but hexafluorosilicate and other anions are also included. This article focuses mainly on the Si-O anions. Silicates comprise the majority of the earth's crust, as well as most planets and moons. Sand, Portland cement, and thousands of minerals Zn4Si The chemical compound silicon dioxide, also known as silica , is an oxide of silicon with a chemical formula of Si 2O7(OH Hydrogen is the chemical element with atomic number 1. It is represented by the symbol H. With an average atomic weight of 1.00794 u (1.007825 u for Hydrogen-1), hydrogen is the lightest and most abundant chemical element, constituting roughly 75 % of the Universe's elemental mass. Stars in the main sequence are mainly composed of hydrogen in its)2·H2O or hemimorphite.
The two minerals are usually very similar in appearance and can only be distinguished through chemical analysis Analytical chemistry is the study of the separation, identification, and quantification of the chemical components of natural and artificial materials. Qualitative analysis gives an indication of the identity of the chemical species in the sample and quantitative analysis determines the amount of one or more of these components. The separation of. The first person to separate the minerals was the British Great Britain is an island situated to the northwest of Continental Europe. It is the ninth largest island in the world, and the largest European island. With a population of about 61.8 million people in mid-2009, it is the third most populated island on Earth. Great Britain is surrounded by over 1,000 smaller islands and islets. The island of chemist and mineralogist James Smithson James Smithson, F.R.S., M.A. was a British mineralogist and chemist noted for having left a bequest in his will to the United States of America, which was used to initially fund the Smithsonian Institution in 1803. In the mining Mining is the extraction of valuable minerals or other geological materials from the earth, usually from an ore body, vein or seam. Materials recovered by mining include base metals, precious metals, iron, uranium, coal, diamonds, limestone, oil shale, rock salt and potash. Any material that cannot be grown through agricultural processes, or industry the term calamine is still used to refer to both minerals indiscriminately.
In mineralogy Mineralogy is the study of chemistry, crystal structure, and physical properties of minerals. Specific studies within mineralogy include the processes of mineral origin and formation, classification of minerals, their geographical distribution, as well as their utilization calamine is no longer considered a valid term. It has been replaced by smithsonite and hemimorphite in order to distinguish it from the pinkish mixture of zinc oxide Zinc oxide is an inorganic compound with the formula ZnO. It usually appears as a white powder, nearly insoluble in water. The powder is widely used as an additive into numerous materials and products including plastics, ceramics, glass, cement, rubber , lubricants, paints, ointments, adhesives, sealants, pigments, foods (source of Zn nutrient), (ZnO) and iron(III) oxide Iron oxide is the inorganic compound with the formula Fe2O3. It is of one of the three main oxides of iron, the other two being FeO, which is rare, and Fe3O4, which also occurs naturally as the mineral magnetite. As the mineral known as hematite, Fe2O3 is the main source of the iron for the steel industry. Fe2O3 is paramagnetic, reddish brown, and (Fe2O3) used in calamine lotion Calamine is a mixture of zinc oxide with about 0.5% iron(III) oxide (Fe2O3). It is the main ingredient in calamine lotion and is used as an antipruritic (anti-itching agent) to treat mild pruritic conditions such as sunburn, eczema, rashes, poison ivy, chickenpox, and insect bites and stings. It is also used as a mild antiseptic to prevent.
Until the 18th century, calamine was essential for the production of brass Brass is any alloy of copper and zinc; the proportions of zinc and copper can be varied to create a range of brasses with varying properties. In comparison, bronze is principally an alloy of copper and tin. Despite this distinction some types of brasses are called bronzes and vice-versa. Brass is a substitutional alloy. It is used for decoration since metallic zinc does not exist in nature and no technique was known to produce it. Brass produced using calamine is called calamine brass.
See also
- Calamine Calamine is a mixture of zinc oxide with about 0.5% iron(III) oxide (Fe2O3). It is the main ingredient in calamine lotion and is used as an antipruritic (anti-itching agent) to treat mild pruritic conditions such as sunburn, eczema, rashes, poison ivy, chickenpox, and insect bites and stings. It is also used as a mild antiseptic to prevent, a mixture used in calamine lotion
- Smithsonite
- Hemimorphite
Categories: Zinc minerals
