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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Glauconite from
Grasmanka Stream, Jičina, Nový Jičín, Nový Jičín District, Moravian-Silesian Region, Czech Republic


Locality type:Stream
Classification
Species:'Glauconite' (not an IMA approved species)
Formula:K0.60-0.85(Fe3+,Mg,Al)2(Si,Al)4O10](OH)2
Confirmation
Validity:Unconfirmed/Questioned
Associated Minerals Based on Photo Data:
Calcite3
Data
Mineral Data:Click here to view Glauconite data
Locality Data:Click here to view Grasmanka Stream, Jičina, Nový Jičín, Nový Jičín District, Moravian-Silesian Region, Czech Republic
Data Identifiers
Mindat Occurrence Record ID:1603611
Long-form Identifier:1:3:1603611:2
GUID (UUID V4):0
Nearest other occurrences of Glauconite
10.6km (6.6 miles) ⓘLimestone quarries, Štramberk, Nový Jičín District, Moravian-Silesian Region, Czech Republic
17.2km (10.7 miles) ⓘHončova hůrka Hill, Skotnice, Nový Jičín District, Moravian-Silesian Region, Czech Republic
44.1km (27.4 miles) ⓘSandstone quarries, Řeka, Frýdek-Místek District, Moravian-Silesian Region, Czech Republic
49.2km (30.6 miles) ⓘKobeřice gypsum quarry, Kobeřice, Opava District, Moravian-Silesian Region, Czech Republic
53.4km (33.2 miles) ⓘGlauconite outcrop, Vendryně, Frýdek-Místek District, Moravian-Silesian Region, Czech Republic
59.4km (36.9 miles) ⓘNowa Cerekwia, Gmina Kietrz, Głubczyce County, Opole Voivodeship, Poland
References
Jirásek, J., Matýsek, D., Novosad, B. (2023): Pseudomorfózy kalcitu po aragonitu z hornin těšínitové asociace v Podbeskydí. – Acta Musei Moraviae, Scientiae Geologicae, 108, 2, 195–212.
 
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