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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Efremovite from
Heřmanice dump, Heřmanice, Ostrava, Ostrava-City District, Moravian-Silesian Region, Czech Republic


08805360017370515519559.jpg
Efremovite, etc.

Heřmanice dump, Heřmanice, Ostrava, Ostrava-City District, Moravian-Silesian Region, Czech Republic
03989870017370515528260.jpg
Efremovite

Heřmanice dump, Heřmanice, Ostrava, Ostrava-City District, Moravian-Silesian Region, Czech Republic
08040780017272729968634.jpg
Efremovite, etc.

Heřmanice dump, Heřmanice, Ostrava, Ostrava-City District, Moravian-Silesian Region, Czech Republic
06870780017272252602927.jpg
Efremovite

Heřmanice dump, Heřmanice, Ostrava, Ostrava-City District, Moravian-Silesian Region, Czech Republic
04693840017271922752237.jpg
Efremovite, etc.

Heřmanice dump, Heřmanice, Ostrava, Ostrava-City District, Moravian-Silesian Region, Czech Republic
06870780017272252602927.jpg
Efremovite

Heřmanice dump, Heřmanice, Ostrava, Ostrava-City District, Moravian-Silesian Region, Czech Republic
Locality type:Coal Dump
Classification
Species:Efremovite
Formula:(NH4)2Mg2(SO4)3
Confirmation
Validity:Believed Valid
Associated Minerals Based on Photo Data:
Pyracmonite2
Godovikovite1
Data
Mineral Data:Click here to view Efremovite data
Locality Data:Click here to view Heřmanice dump, Heřmanice, Ostrava, Ostrava-City District, Moravian-Silesian Region, Czech Republic
Photo GalleryView Gallery (2 photos)
Data Identifiers
Mindat Occurrence Record ID:1607701
Long-form Identifier:1:3:1607701:2
GUID (UUID V4):0
Nearest other occurrences of Efremovite
22.1km (13.7 miles) ⓘMarcel mine heap, Radlin, Wodzisław County, Silesian Voivodeship, Poland
23.3km (14.4 miles) ⓘRydułtowy heap (Szarlota heap), ROW Ruch Rydułtowy Mine, Rydułtowy, Wodzisław County, Silesian Voivodeship, Poland
41.6km (25.9 miles) ⓘDębieńsko Mine heap, Gmina Czerwionka-Leszczyny, Rybnik 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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