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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Nontronite from
Kaoline mine, Wyrwak Hill, Kamień, Gmina Mirsk, Lwówek Śląski County, Lower Silesian Voivodeship, Poland


Locality type:Mine
Classification
Species:Nontronite
Formula:Na0.3Fe2((Si,Al)4O10)(OH)2 · nH2O
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Nontronite data
Locality Data:Click here to view Kaoline mine, Wyrwak Hill, Kamień, Gmina Mirsk, Lwówek Śląski County, Lower Silesian Voivodeship, Poland
Data Identifiers
Mindat Occurrence Record ID:1582650
Long-form Identifier:1:3:1582650:9
GUID (UUID V4):0
Nearest other occurrences of Nontronite
0.7km (0.4 miles) ⓘWyrwak Hill, Kamień, Gmina Mirsk, Lwówek Śląski County, Lower Silesian Voivodeship, Poland
15.0km (9.3 miles) ⓘKarkonosze IG-1 borehole, Jakuszyce, Szklarska Poręba, Karkonosze County, Lower Silesian Voivodeship, Poland
35.3km (22.0 miles) ⓘSteinberg basanite quarry, Ostritz, Görlitz District, Saxony, Germany
36.8km (22.9 miles) ⓘJeziorna quarry, Nowy Kościół, Gmina Świerzawa, Złotoryja County, Lower Silesian Voivodeship, Poland
38.9km (24.2 miles) ⓘBobrzak Pass granite quarry I, Kowary, Karkonosze County, Lower Silesian Voivodeship, Poland
46.9km (29.1 miles) ⓘJenichen Quarry (Jehnichen Quarry; Jähnichen Quarry), Königshain, Görlitz District, Saxony, Germany
57.0km (35.4 miles) ⓘHřídelec quarry, Hřídelec, Lázně Bělohrad, Jičín District, Hradec Králové Region, Czech Republic
References
Lis, Józef, Sylwestrzak, Hubert (1986) Minerały Dolnego Śląska [Minerals of the Lower Silesia]. Wydawnictwa Geologiczne.
 
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