godovikovite
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Godovikovite is a rare sulfate mineral with the chemical formula: (NH4)Al(SO4)2. Aluminium can partially be substituted by iron. Hydration of godovikovite gives the ammonium alum, tschermigite. The mineral forms cryptocrystalline, often porous, masses, usually of white colour. Single crystals are very small hexagonal blades. Typical environment for godovikovite are burning coal sites (mainly dumps). There the mineral acts, together with millosevichite, as one of the main components of so-called sulfate crust.
In the Vinony graph
Within Vinony's link graph, godovikovite is referenced by 5 other articles, and connects out to Italy, Sicily and Ural Mountains.
Vinony files it under Sulfate minerals and Trigonal minerals.
Its subject is documented across 7 Wikipedia language editions.
Wikidata facts
- Image
- Godovikovite with red demicheleite-(Cl).jpg
Show 7 more facts
- Nickel-Strunz '10th ed', review of (9th ed/ 2009 update)
- 7.AC.20
- crystal system
- trigonal crystal system
- Nickel-Strunz 9th edition (updated 2009)
- 7.AC.20
- type locality (geology)
- Kopeysk
- Commons category
- Godovikovite
- IMA Mineral Symbol
- God
- chemical formula
- (NH₄)Al(SO₄)₂
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Encyclopedic overview
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Godovikovite is a rare sulfate mineral with the chemical formula: (NH4)Al(SO4)2. Aluminium can partially be substituted by iron. Hydration of godovikovite gives the ammonium alum, tschermigite. The mineral forms cryptocrystalline, often porous, masses, usually of white colour. Single crystals are very small hexagonal blades. Typical environment for godovikovite are burning coal sites (mainly dumps). There the mineral acts, together with millosevichite, as one of the main components of so-called sulfate crust.
It was first described in 1988 for an occurrence in the Chelyabinsk coal basin, Chelyabinsk Oblast, Southern Urals, Russia, and named for Russian mineralogist Aleksandrovich Godovikov (1927–1995).
Excerpted from Wikipedia’s “godovikovite” article, available under the CC BY-SA 4.0 licence.