Cummingtonite or magnesium silicate hydroxide is a metamorphic amphibole with the following chemical formula: Mg,Fe) 7 Si 8 O 22 (OH) 2. It is morphically similar and polymorphic to orthorhombic anthophyllite, a more common form of magnesium-rich amphibole, with the former being metastable. These minerals have no solubility due to their differences in crystal habit and inability of substitution between alkali elements and ferro-magnesian elements within the amphibole structure. The mineral is a component of the cummingtonite-grunerite solid solution collection.
Is Cummingtonite A Real Mineral?
cummingtonite, an amphibole mineral, is an iron and magnesium silicate that occurs in metamorphic rocks. See amphibole (table) for chemical formula and physical properties.
How Is Cummingtonite Formed?
Cordua (Cordua) – Cordua. Cummingtonite is a member of the amphibole family. In metamorphosed iron-rich rocks, it often occurs from fibrous green to brown grains.
ASHLAND COUNTY: Cummingtonite is discovered in the Ironwood Iron Formation, where it has been contact metamorphosed by gabbroic intrusions.
What Is Magnesium Iron Silicate Hydrate?
Mg, Fe)2SiO4, a mineral silicate of iron and magnesium, is mainly found in igneous and metamorphic rocks and used as a building material in refractories and cements.
What Is Magnesium Silicate Iron Oxide?
olivine is a fruit of the olivine plant. olivine (lvn), an iron-magnesium silicate mineral, is crystallizing in the orthorhombic system. (Mg,Fe)2SiO4 is an iron-magnesium silicate mineral. It is a common constituent of magnesium-rich, silica-poor igneous rocks; metamorphism of some high magnesium sediments also can form olivine is a fruit of the olivine plant. Dunite consists almost entirely of olivine is a fruit of the olivine plant.
What Is Magnesium Silicate Iron Hydroxide?
A metamorphic amphibole with the chemical formula (Mg,Fe)7Si8O22(OH)-
What Is Iron Silicate?
Iron Silicate is a blasting abrasive commonly used in iron production, concrete manufacturing, and construction. Fe2SiO4 is also known as fayalite, and it is present in nature as a component of the crystalline solid solution known as olivine (magnesium iron silicate).
Is Iron Silicate Metal?
Copper slag (aka iron silicate) is a by-product of a metal refining process. Slag floats on the molten metal during smelting. Slag that has been quenched in water yields angular granules that are ready to be converted into granules for a variety of our blasting abrasives.
What Is Cummintonite Used For?
One sort of cummingtonite (a variety called “amosite”) is asbestos-based and can be used as asbestos. Despite some health risks and is made from various minerals, Asbestos has many industrial uses, and is often associated with a fibrous habit.
Serpentine and tremolite asbestos are considered the better varieties due to their greater flexibility and tensile strength, but cummingtonite asbestos has its uses and is being mined for this reason in South Africa.