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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Biotite from
Hřídelec quarry, Hřídelec, Lázně Bělohrad, Jičín District, Hradec Králové Region, Czech Republic


Locality type:Quarry
Classification
Species:'Biotite' (not an IMA approved species)
Formula:K(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Biotite data
Locality Data:Click here to view Hřídelec quarry, Hřídelec, Lázně Bělohrad, Jičín District, Hradec Králové Region, Czech Republic
Data Identifiers
Mindat Occurrence Record ID:637730
Long-form Identifier:1:3:637730:4
GUID (UUID V4):0
Nearest other occurrences of Biotite
32.4km (20.1 miles) ⓘObří důl, Pec pod Sněžkou, Trutnov District, Hradec Králové Region, Czech Republic
36.2km (22.5 miles) ⓘŽacléřské boudy, Malá Úpa, Trutnov District, Hradec Králové Region, Czech Republic
38.1km (23.7 miles) ⓘNovátor mine, Bernartice, Benešov District, Central Bohemian Region, Czech Republic
39.2km (24.4 miles) ⓘKrucze Skały, Karpacz, Karkonosze County, Lower Silesian Voivodeship, Poland
39.2km (24.4 miles) ⓘKateřina Coal Mine, Radvanice, Trutnov District, Hradec Králové Region, Czech Republic
40.5km (25.2 miles) ⓘWołowa Góra, Kowary, Karkonosze County, Lower Silesian Voivodeship, Poland
41.9km (26.1 miles) ⓘSkalna Brama pegmatite, Szklarska Poręba, Karkonosze County, Lower Silesian Voivodeship, Poland
42.0km (26.1 miles) ⓘPtasie Gniazda Rocks, Szklarska Poręba, Karkonosze County, Lower Silesian Voivodeship, Poland
42.1km (26.1 miles) ⓘKarkonosze IG-1 borehole, Jakuszyce, Szklarska Poręba, Karkonosze County, Lower Silesian Voivodeship, Poland
42.2km (26.2 miles) ⓘSzklarska Poręba Huta granite quarry, Szklarska Poręba, Karkonosze County, Lower Silesian Voivodeship, Poland
References
www.mineralos.cz (2003) http://www.mineralos.cz/lokality/hridele/uhride.htm
 
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