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Serrabrancaite
Serrabrancaite is a mineral with the chemical formula MnPO4•H2O and which is named for the locality where it was found, the Alto Serra Branca Pegmatite. The Alto Serra Branca mine has been in operation since the 1940s. It is located in Paraiba, Brazil near a village named Pedra Lavrada. Tantalite is the main mineral mined here. Specimens of serrabrancaite are kept in the Mineralogical Collections of both the Bergakademie Freiberg, Germany and the Martin-Luther Universität Halle, Institut für Geologische Wissenschaften. Occurrence The Alto Serra Branca Mine occurs where a granitic pegmatite intruded upon a biotite schist. There are many minerals found within this pegmatite. The main constituents are quartz, muscovite, microcline, and albite and amblygonite are common in smaller quantities. The minerals apatite, beryl, uraninite, and elbaite along with the tantalite group and other secondary uranium minerals are found throughout the mine. Near the center of the open portion ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Phosphate Mineral
Phosphate minerals contain the tetrahedrally coordinated phosphate (PO43−) anion along sometimes with arsenate (AsO43−) and vanadate (VO43−) substitutions, and chloride (Cl−), fluoride (F−), and hydroxide (OH−) anions that also fit into the crystal structure. The phosphate class of minerals is a large and diverse group, however, only a few species are relatively common. Applications Phosphate rock has high concentration of phosphate minerals, most commonly of the apatite group. It is the major resource mined to produce phosphate fertilizers for the agriculture sector. Phosphate is also used in animal feed supplements, food preservatives, anti-corrosion agents, cosmetics, fungicides, ceramics, water treatment and metallurgy. The largest use of minerals mined for their phosphate content is the production of fertilizer. Phosphate minerals are often used for control of rust and prevention of corrosion on ferrous materials applied with electrochemical conversion co ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Triphylite
Triphylite is a lithium iron(II) phosphate mineral with the chemical formula LiFePO4.IMA-CNMNC List of Mineral Names (May 2015), It is a member of the triphylite group and forms a complete series with the lithium manganese(II) phosphate, lithiophilite. Triphylite crystallizes in the |
Alteration Product
Alteration(s) may refer to: * Alteration (music), the use of a neighboring pitch in the chromatic scale in place of its diatonic neighbor. ** Alteration, in the mensural notation used by renaissance music, the lengthening of a breve, semibreve or minim in particular rhythmic contexts * Alteration (crime), in law, an offence of modifying an object with a view to deceiving another into believing that the true object is the same as that altered, for instance, money alteration is an offence of altering money "with the intent that it be brought into circulation as genuine or that such bringing into circulation be facilitated" * In tailoring, changing an existing garment * Mineral alteration, in geology, the changing of minerals and rock fabrics chemically by heat and fluid circulation * Alteration, or root operation 0 according to the ICD-10-PCS, modifying the natural anatomic structure of a body part without affecting its function, e.g to improve appearance * '' The Alteration'', 1976 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Phosphosiderite
Phosphosiderite is a rare mineral named for its main components, phosphate and iron. The siderite at the end of phosphosiderite comes from the word "sideros", the Greek word for iron. It was published in 1890, and has been a valid species since pre- IMA. It is an IMA approved mineral which got grandfathered, meaning its name is still believed to refer to an existing species. Properties Phosphosiderite is a member of the metavariscite group, and probably forms a complete series with metavariscite. It is the dimorph of strengite. It is totally soluble in Hydrochloric acid and nearly insoluble in nitric acid. It is usually cut into a cabochon shape for jewelry, and used as an ornamental stone. It mainly consists of oxygen (51.38%), iron (29.89%) and phosphorus (16.58%), but contains hydrogen (2.16%) as well. Colors Phosphosiderite is often found in a bright orchid-purple tint with yellow-colored streaks. The vein-like streaks found in the stone are known as cacoxenite. Four oth ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Eosphorite
Eosphorite is a brown (occasionally pink) manganese hydrous phosphate mineral with chemical formula: Mn Al( P O4)(O H)2· H2O. It is used as a gemstone. Eosphorite crystallizes in the monoclinic crystal system. It forms slender prismatic crystals which often form radiating or spherical clusters. The crystals often show pseudo–orthorhombic forms due to twinning. Eosphorite forms a series with childrenite, the iron rich member, with divalent iron replacing most of the manganese in the crystal lattice. The two endmembers are isostructural but differ in their properties, such as crystal habit, coloration, and optical properties. It was first described in 1878 for an occurrence in the Branchville Mica Mine in Branchville, Fairfield County, Connecticut, US. Its name is derived from the Greek έωσφορος for "dawn-bearing," because of its pink color. It occurs worldwide typically as a secondary mineral in phosphate rich granitic pegmatites in association with rhodochrosite, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hureaulite
Hureaulite is a manganese phosphate with the formula . It was discovered in 1825 and named in 1826 for the type locality, Les Hureaux, Saint-Sylvestre, Haute-Vienne, Limousin, France. It is sometimes written as huréaulite, but the IMA does not recommend this for English language text.Burke, E. A. J. (2008): Tidying up Mineral Names: An IMA scheme for Suffixes, Hyphens and Diacritical Marks. Mineralogical Record, 39, 134 A complete series exists from lithiophilite, to triphylite, , including hureaulite, strengite, , stewartite, , and sicklerite, .Murdoch, Joseph (1943) Crystallography of Hureaulite. American Mineralogist 28: 19-24 Environment Hureaulite is a secondary mineral occurring in granite pegmatites. At the type locality it occurs in a zone of altered triphylite, , in pegmatite. Typically occurs very late in the sequence of formation of secondary phosphate minerals.Moore, P B, and Araki, T (1973) Hureaulite: its atomic arrangement. American Mineralogist 58: 302-307. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
