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
Arsenic and nickel mine (Nickel Mine Brook), Seymour, New Haven County, Connecticut, USA


Locality type:Mine
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 Arsenic and nickel mine (Nickel Mine Brook), Seymour, New Haven County, Connecticut, USA
Data Identifiers
Mindat Occurrence Record ID:131650
Long-form Identifier:1:3:131650:6
GUID (UUID V4):0
Nearest other occurrences of Biotite
4.4km (2.8 miles) ⓘLittle Laurel Lime Park, Seymour, New Haven County, Connecticut, USA
11.1km (6.9 miles) ⓘCurtis Quarry, Southford, Southbury, New Haven County, Connecticut, USA
13.8km (8.6 miles) ⓘNew England Materials quarry, Monroe, Fairfield County, Connecticut, USA
14.9km (9.2 miles) ⓘCorporate Drive, Long Hill, Trumbull, Fairfield County, Connecticut, USA
15.4km (9.6 miles) ⓘOld Mine Park (Old Tungsten Mine), Long Hill, Trumbull, Fairfield County, Connecticut, USA
19.7km (12.2 miles) ⓘProgress Lane construction site, Waterbury, New Haven County, Connecticut, USA
21.2km (13.2 miles) ⓘInterstate 84 interchange 26, Cheshire, New Haven County, Connecticut, USA
22.6km (14.0 miles) ⓘNonnewaug River Industrial Park, Woodbury, Litchfield County, Connecticut, USA
22.9km (14.2 miles) ⓘRoute 73 quarry, Waterbury, New Haven County, Connecticut, USA
23.3km (14.5 miles) ⓘGreen's Farm locality (Roxbury garnet mine; Roxbury Falls garnet mine; Garnet Hill), Roxbury, Litchfield County, Connecticut, USA
References
Januzzi, Ron E., Seaman, David M. (1976) Mineral Localities of Connecticut and Southeastern New York State and Pegmatite Minerals of the World. The Mineralogical Press, Danbury, Connecticut, USA.
 
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