Manganese is a chemical element, designated by the symbol Mn. It has the atomic number 25. It is found as a free element in nature (often in combination with iron), and in many minerals. Manganese is a metal with important industrial metal alloy uses, particularly in stainless steels. Historically, manganese is named for various black minerals (such as pyrolusite) from the same region of Magnesia in Greece which gave names to similar-sounding magnesium, Mg, and magnetite, an ore of the element iron, Fe. By the mid-18th century, Swedish chemist Carl Wilhelm Scheelehad used pyrolusite to produce chlorine. Scheele and others were aware that pyrolusite (now known to be manganese dioxide) contained a new element, but they were not able to isolate it. Johan Gottlieb Gahn was the first to isolate an impure sample of manganese metal in 1774, byreducing the dioxide with carbon. Manganese phosphating is used as a treatment for rust and corrosion prevention on steel. Depending on their oxidation state, manganese ionshave various colors and are used industrially as pigments. The permanganates of alkali and alkaline earth metals are powerful oxidizers. Manganese dioxide is used as the cathode (electron acceptor) material in zinc-carbon and alkaline batteries. In biology, manganese(II) ions function as cofactors for a large variety of enzymes with many functions.[1] Manganese enzymes are particularly essential in detoxification of superoxide free radicals in organisms that must deal with elemental oxygen. Manganese also functions in the oxygen-evolving complex of photosynthetic plants. The element is a required trace mineral for all known living organisms. In larger amounts, and apparently with far greater activity by inhalation, it can cause a poisoning syndrome in mammals, with neurological damage which is sometimes irreversible.
Chrome Ore The only ore of chromium, the metal used to make stainless steel, nichrome and chrome plating. What is Chrome Ore? Chrome Ore is an oxide mineral composed of chromium, iron and oxygen (FeCr2O4). It is a dark gray to black in color with a metallic to submetallic luster and a high specific gravity. It occurs in basic and ultrabasic igneous rocks and in the metamorphic and sedimentary rocks that are produced when Chrome Ore-bearing rocks are altered by heat or weathering. Chrome Ore is important because it is the only economic ore ofchromium, an essential element for a wide variety of metal, chemical and manufactured products. Many other minerals contain chromium, but none of them are found in deposits that can be economically mined to produce chromium. Properties of Chrome Ore Chrome Ore can be challenging to identify. Several properties must be considered to differentiate it from other metallic ores. Hand specimen identification of Chrome Ore requires a consideration of: color, specific gravity, luster, and a characteristic brown streak. The most important clue to identifying Chrome Ore is its association with ultrabasic igneous rocks and metamorphic rocks such as serpentinite. Physical Properties of Chrome Ore Chrome Ore is sometimes slightly magnetic. This can cause it to be confused with magnetite. Chrome Ore and ilmenite have very similar properties. Careful observations of hardness, streak and specific gravity are required to distinguish these minerals in hand specimens.
Northrock Resourses is non ferrous metal mining company based in Somaliland and corporate office in UAE-Sharjah. We have recently started our operations and powered to supply Copper Ore 1000- 2000 MT /Month. We invites long business contract from serious buyers across the world. Our trail shipment 100 MT will be ported in Sharjah , Hamriyah port end of july. Copper Content : 20-30 % FOB:Sharjah
Bauxite, Magnesite And Iron Ore.
Barite powder, barite lumps, drilling mud agents.
Industrial chemicals, minerals.
Antimony Ore. 200-300 tons per month. delivered to Jabal Ali
We are supplier of lithium ore of various grades up to 6%. All our material is in UAE and customer can analyze samples and sign long term contracts with us. Our price is extremely competitive. We have large availability till 15000 MT per month. Contact us in order to discuss our potential collaboration.
Dear Buyers and Importers We supplier copper ore from East Africa cu content: 24% - 53% min supply: 800mt max supply: 55000mt Looking for direct buyers. Regards Nawal
Minerals, coltan, rare earth minerals, tentolites, clays, and minerals, quartz, semi precious stones.
Quartz powder.
Metals and derivatives.Trading
Plastic raw materials, minerals, sodium bentonite, fluorite (caf2).
Industrial commodities - cement, kaolin, laterite & gypsum.
Chemicals & petrochemical, minerals & metals.
We supply premium copper anodes, crucial for electroplating and refining processes. With consistent quality and high purity, these anodes deliver efficient, reliable performance in industries such as electronics manufacturing, ensuring flawless plating results. We manufacture our anodes in the Democratic Republic of Congo for export
Sourced for maximum purity, our lithium concentrate is vital for the production of lithium-ion batteries. With superior energy efficiency, it supports the development of electric vehicles, renewable energy storage solutions, and cutting-edge electronic devices. We source and procure Lithium from established mines in Africa and Asia
We provide high-quality zinc concentrate, essential for galvanization, protecting steel products from rust and corrosion. This material is crucial for ensuring the longevity of infrastructure, vehicles, and household appliances, enhancing durability and safety
Industrial minerals viz bauxite, bentonite, barite, quartz, silica sand, clay, feldspar, limestone, iron ore.
Quartz powder, quartz.
