alunite


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Related to alunite: adularia

al·u·nite

 (ăl′yə-nīt′)
n.
A gray mineral, chiefly KAl3(SO4)2(OH)6, used in making alum and fertilizer.

[French, from alun, alum, from Latin alūmen.]

alunite

(ˈæljʊˌnaɪt)
n
(Minerals) a white, grey, or reddish mineral consisting of hydrated aluminium sulphate. It occurs in volcanic igneous rocks and is a source of potassium and aluminium compounds. Formula: KAl3(SO4)2(OH)6
[C19: from French alun alum (from Latin alūmen) + -ite1]

al•u•nite

(ˈæl yəˌnaɪt)

n.
a mineral, a hydrous sulfate of potassium and aluminum, KAl3(SO4)2(OH)6, commonly occurring in fine-grained masses. Also called al•um•stone (ˈæl əmˌstoʊn)
[1865–70; < French alun (< Latin alūmen alum1) + -ite1]
References in periodicals archive ?
This is necessary for the development of alunite mining in Azerbaijan's Dashkesan region," Nabizade said.
The synthetic target were created from the pure spectral signature of alunite mineral with different degrees of mixing (f= 10%, 20%, 30%, 40%, y 100%).
The manufacture of synthetic proppants relies upon natural resources of aluminum-rich minerals that include bauxite, kaolinite, alunite, and halloysite (Rupke, 2014).
Sericitic, argillic (advanced, intermediate and weak), silicic, chloritic, propyltic, zeolitic and alunite alteration zones have been recognized along this axis.
Meyer R, Pena Dos Reis RB (1985) Paleosols and alunite silcretes in continental Cenozoic series of western Portugal.
The qualitative analysis by X-ray diffraction (Figure 1b) of the gold mining waste reveals that this geomaterial consists of different crystalline phases (quartz, muscovite, pyrite, alunite and goethite).
recently completed a prefeasibility study on its Brawn Mountain prospect, where it is looking at a 590,000-mt/y operation based on mining alunite ore.
2009, Removal of boron from aqueous solutions by batch adsorption on calcined alunite using experimental design, J.
Adsorption of reactive dyes of calcined alunite from aqueous solutions.
Equilibrium data and process design for adsorption of disperse dyes onto Alunite, Environmental Geology 45: 762-768.
Weathered sulphides & oxides (Cu-Au, Pb-Zn, U, Ni, REO's, Fe), gossan, leachcaps, alunite, roll-front uranium, ferruginous laterites, silcretes.