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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Humic coal series from
Kladno mine, Libušin, Kladno District, Central Bohemian Region, Czech Republic


Locality type:Colliery
Classification
Type:Humic coal series
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Humic coal series data
Locality Data:Click here to view Kladno mine, Libušin, Kladno District, Central Bohemian Region, Czech Republic
Data Identifiers
Mindat Occurrence Record ID:1320449
Long-form Identifier:1:3:1320449:3
GUID (UUID V4):0
Nearest other occurrences of Humic coal series
83.5km (51.9 miles) ⓘMine 388, Königstein, Sächsische Schweiz-Osterzgebirge, Saxony, Germany
93.8km (58.3 miles) ⓘDružba quarry, Nové Sedlo, Sokolov District, Karlovy Vary Region, Czech Republic
References
Zacek, V., Skoda, R., Laufek, F., Kosek, F., & Jehlicka, J. (2019). Complementing knowledge about rare sulphates lonecreekite, NH4Fe3+ (SO4) 2· 12 H2O and sabieite, NH4Fe3+ (SO4) 2: chemical composition, XRD and RAMAN spectroscopy (Libusin near Kladno, the Czech Republic). Journal of Geosciences, 64(2), 149-159.
 
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