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
Dobrá-Staré Město, Dobrá, Frýdek-Místek District, Moravian-Silesian Region, Czech Republic


Locality type:Outcrop
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 Dobrá-Staré Město, Dobrá, Frýdek-Místek District, Moravian-Silesian Region, Czech Republic
Data Identifiers
Mindat Occurrence Record ID:1614583
Long-form Identifier:1:3:1614583:6
GUID (UUID V4):0
Nearest other occurrences of Alunogen
19.5km (12.1 miles) ⓘZárubek Mine (after 1954), Ostrava Mine (after 1967), Odra Mine (after 1995), Ostrava, Ostrava-City District, Moravian-Silesian Region, Czech Republic
23.8km (14.8 miles) ⓘHeřmanice dump, Heřmanice, Ostrava, Ostrava-City District, Moravian-Silesian Region, Czech Republic
24.6km (15.3 miles) ⓘLandek Hill, Koblov, Ostrava, Ostrava-City District, Moravian-Silesian Region, Czech Republic
41.6km (25.8 miles) ⓘMarcel mine heap, Radlin, Wodzisław County, Silesian Voivodeship, Poland
58.1km (36.1 miles) ⓘDębieńsko Mine heap, Gmina Czerwionka-Leszczyny, Rybnik County, Silesian Voivodeship, Poland
61.4km (38.2 miles) ⓘSkalny dump, Łaziska Górne, Mikołów County, Silesian Voivodeship, Poland
89.5km (55.6 miles) ⓘWojkowice burning coal-mining heap, Wojkowice, Będzin County, Silesian Voivodeship, Poland
References
Matýsek, D. & Jirásek, J. (2023): Supergene mineral assemblage from sediments affected by contact and hydrothermal metamorphism, locality Dobrá – Staré Město near Frýdek-Místek (Czech Republic). Geoscience Research Reports - Czech Geological Survey, Prague, 56, 89-99.
 
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