Alunite: Alunite mineral information and data. - Mindat

Common member of the alunite supergroup. The Al analogue of <m>jarosite</m> and the K analogue of <m>natroalunite</m>. Alunite has been used for dating (K-Ar method) of weathering processes in ore deposits or of the deposition of alunite in caves.

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Alunite Mineral Data

Calculated Properties of Alunite : Electron Density: Bulk Density (Electron Density) ... McDougall Minerals Google Search for Alunite Mineral News Website Link

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ALUNITE (Potassium Aluminum Sulfate Hydroxide)

Alunite also forms at volcanic fumaroles. The symmetry of alunite is the same as the members of the Tourmaline Group. Crystals of alunite however do not form prismatic crystals like those of the typical tourmaline mineral. Alunite's crystals are more flattened and resemble nearly cubic rhombohedrons.

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Alunite - Wikipedia

Alunite is a hydrated aluminium potassium sulfate mineral, formula KAl3(SO4)2(OH)6. It was first observed in the 15th century at Tolfa, near Rome, where it is mined for the manufacture of alum.

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Alunite - Occurrence, Properties, and Distribution

Alunite is a sulfate mineral first discovered in Monti della Tolfa, Rome in the 15 th century. It is rarely found in the massive material cavities as distinct crystals. It occurs as veins and replacement masses in rhyolite, trachyte and other potassium rich volcanic rocks.

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Alunite | mineral | Britannica

For chemical formula and physical properties, see sulfate mineral (table). Alunite from Marysvale, Utah Courtesy of the Field Museum of Natural History, Chicago; photograph, John H. Gerard/Encyclopædia Britannica, Inc.

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Alunite KAl3(SO4 2(OH)6 - Handbook of Mineralogy

Alunite KAl3(SO4)2(OH)6 c 2001-2005 Mineral Data Publishing, version 1 Crystal Data: Hexagonal. Point Group: 32/m or 3m. Crystals typically pseudocubic {0112} or tabular {0001} with flat vicinal rhombohedra, to 1 cm; fibrous to columnar,

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Alunite Supergroup: Alunite Supergroup mineral information ...

Chemical Properties of Alunite SupergroupHide ... Lerouge, C., Wille, G., Michel, K. (2012): Characterization of alunite supergroup minerals by Raman spectroscopy.

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Bauxite: The principal ore of aluminum. - Geology

Many people are surprised to learn that bauxite is a rock and not a mineral. ... Physical Properties of Bauxite. ... Clay minerals, alunite, ...

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Alunite - Occurrence, Properties, and Distribution

Introduction to Alunite Properties of Alunite How to Identify Alunite Global Distribution Occurrence of Alunite and Useful Mineral Association References. Introduction to Alunite. Chemical Formula – KAl 3 (SO 4)2(OH)6. Alunite is a sulfate mineral, first discovered in Monti della Tolfa, Rome, in the 15 th century.

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Jarosite - Wikipedia

Jarosite is a basic hydrous sulfate of potassium and iron with a chemical formula of KFe3+3(OH)6(SO4)2. This sulfate mineral is formed in ore deposits by the oxidation of iron sulfides.

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Alunite KAl3(SO4 2(OH)6 - Handbook of Mineralogy

Alunite KAl3(SO4)2(OH)6 c 2001-2005 Mineral Data Publishing, version 1 Crystal Data: Hexagonal. Point Group: 32/m or 3m. Crystals typically pseudocubic {0112} or tabular {0001} with flat vicinal rhombohedra, to 1 cm; fibrous to columnar,

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The visible and infrared spectral properties of jarosite ...

and mid-infrared spectral detection of these two alunite-group minerals. BISHOP AND MURAD: THE SPECTRAL PROPERTIES OF JAROSITE AND ALUNITE 1101 are in d orbitals.

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Alunite: Properties and Occurrence - Assignment Point

Alunite is a hydrated aluminum potassium sulfate mineral, formula KAl 3 (SO 4) 2 (OH) 6. It is a sulfate mineral, first discovered in Monti della Tolfa, Rome, in the 15th century, where it is mined for the manufacture of alum.

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Chemical, crystallographic and stable isotopic properties ...

Chemical, crystallographic and stable isotopic properties of alunite and jarosite from acid-Hypersaline Australian ... isotopic properties of alunite and jarosite ...

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Alunite | Mineralogy4Kids

Named after the Latin word for “alum”, this mineral is also called “alumstone.” It was discovered in Latium, Italy, in 1824 and is formed by sulfuric acid solutions acting on rocks rich in potash feldspar.

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Alunite - CAMEO

Alunite was first called aluminilite by J.C. Delametherie in 1707, but the name was shortened to alunite. The off-white to yellowish stone is composed of aluminum potassium sulfate and is found in the U.S. (Utah, California, Arizona, Colorado, Nevada, Washington), Spain (Almería), Ulkraine (Beregovo), Italy (Tolfa, Tuscany), France, Mexico, and Australia (New South Wales).

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Wisconsin Geological & Natural History Survey » Alunite

Description: Alunite is an inconspicuous grayish massive mineral formed by the alteration of pyrite and other sulfides during weathering or solfatara activity.

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Chemical, crystallographic and stable isotopic properties ...

Chemical, crystallographic and stable isotopic properties of alunite and jarosite from acid-Hypersaline Australian ... isotopic properties of alunite and jarosite ...

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Mineralienatlas Lexikon - Alunite (english Version)

Mineral Data, Mineralienatlas Lexikon, Alunite. Mineralienatlas - Fossilienatlas. Overview Homepage Linklist Calendar

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Properties and hydration of blended cements with mineral ...

Download citation | Properties and hydra... | The present research study investigates the effect of mixing ordinary Portland cement with alunite, a mineral of the jarosite group.

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alunite stone properties - crusherasia

Find the Right and the Top alunite stone properties for your coal handling ... Read about alunite minerals, alunite uses, alunite properties, alunite occurrences, Stones.

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Mineral: Alunite

Digitalfire Reference Database Minerals: Technical information about this mineral in relation to traditional ceramics

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Albite Gemstone Properties | Shimmerlings

Albite Gemstone Properties. ... Although usually not an exceptional collection mineral in itself, Albite can be a nice accessory mineral to other mineral species.

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