Vote for your favorite mineral in #MinCup26! - Quartz vs. Asagiite
It's a classic vs a newbie as the most common named mineral in the crust Quartz is up against an exceedingly-rare sea foam-green mineral discovered just a few years ago Asagiite.
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Alunogen from
Heřmanice dump, Heřmanice, Ostrava, Ostrava-City District, Moravian-Silesian Region, Czech Republic


Locality type:Coal Dump
Classification
Species:Alunogen
Formula:Al2(SO4)3 · 17H2O
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Alunogen data
Locality Data:Click here to view Heřmanice dump, Heřmanice, Ostrava, Ostrava-City District, Moravian-Silesian Region, Czech Republic
Data Identifiers
Mindat Occurrence Record ID:1607694
Long-form Identifier:1:3:1607694:3
GUID (UUID V4):0
Nearest other occurrences of Alunogen
3.2km (2.0 miles) ⓘLandek Hill, Koblov, Ostrava, Ostrava-City District, Moravian-Silesian Region, Czech Republic
5.0km (3.1 miles) ⓘZárubek Mine (after 1954), Ostrava Mine (after 1967), Odra Mine (after 1995), Ostrava, Ostrava-City District, Moravian-Silesian Region, Czech Republic
22.1km (13.7 miles) ⓘMarcel mine heap, Radlin, Wodzisław County, Silesian Voivodeship, Poland
23.8km (14.8 miles) ⓘDobrá-Staré Město, Dobrá, Frýdek-Místek District, Moravian-Silesian Region, Czech Republic
41.6km (25.9 miles) ⓘDębieńsko Mine heap, Gmina Czerwionka-Leszczyny, Rybnik County, Silesian Voivodeship, Poland
49.0km (30.4 miles) ⓘSkalny dump, Łaziska Górne, Mikołów County, Silesian Voivodeship, Poland
75.1km (46.7 miles) ⓘWojkowice burning coal-mining heap, Wojkowice, Będzin County, Silesian Voivodeship, Poland
References
Košek, Filip (2018) Application of Raman spectroscopy for detection of sulfates of self-ignited coal heaps, Univerzita Karlova, Přı́rodovědecká fakulta.
Matýsek, Dalibor, Jirásek, Jakub (2022) Mineralogy of the coal waste dumps from the Czech part of the Upper Silesian Basin: Emphasized role of halides for element mobility. International Journal of Coal Geology, 264. 104138 doi:10.1016/j.coal.2022.104138
 
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