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
Morefield Mine (Morefield pegmatite), Winterham, Amelia County, Virginia, USA


03125290017369328447051.jpg
Biotite, etc.

Morefield Mine, Winterham, Amelia County, Virginia, USA
03125290017369328447051.jpg
Biotite, etc.

Morefield Mine, Winterham, Amelia County, Virginia, USA
08794380017369328444454.jpg
Biotite, etc.

Morefield Mine, Winterham, Amelia County, Virginia, 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
Associated Minerals Based on Photo Data:
Microcline2
- var Amazonite2
Albite2
- var Cleavelandite1
Zircon1
Beryl1
Data
Mineral Data:Click here to view Biotite data
Locality Data:Click here to view Morefield Mine (Morefield pegmatite), Winterham, Amelia County, Virginia, USA
Data Identifiers
Mindat Occurrence Record ID:98988
Long-form Identifier:1:3:98988:6
GUID (UUID V4):0
Nearest other occurrences of Biotite
5.0km (3.1 miles) ⓘBerry Mine, Amelia (Amelia Court House), Amelia County, Virginia, USA
5.5km (3.4 miles) ⓘPinchbeck No. 1 Mine (Pitchbeck No. 1 Mine; Pinchback Property Mine 63), Amelia (Amelia Court House), Amelia County, Virginia, USA
6.1km (3.8 miles) ⓘAmelia (Amelia Court House), Amelia County, Virginia, USA
6.4km (4.0 miles) ⓘRutherford Mines, Amelia (Amelia Court House), Amelia County, Virginia, USA
19.4km (12.0 miles) ⓘWhite Peak Mines Nos. 1 through 4 (Miller Mine; Purcell Mine), Flat Rock, Powhatan County, Virginia, USA
21.3km (13.2 miles) ⓘFarley Mine, Powhatan County, Virginia, USA
40.6km (25.2 miles) ⓘNuckols Prospect, Goochland County, Virginia, USA
48.5km (30.1 miles) ⓘGreeley Mine (Aye's Mine; Ayres Mine), Gold-Pyrite Belt, Buckingham County, Virginia, USA
50.3km (31.3 miles) ⓘWillis Mountain Mine, Sprouses Corner, Farmville Mining District, Buckingham County, Virginia, USA
50.8km (31.6 miles) ⓘMargaret Mine (Terrell Mine), New Canton, Gold-Pyrite Belt, Buckingham County, Virginia, USA
References
Rocks & Min.: 8:143-144.
Bulletin 33.
Pegau, Arthur A. (1932) Pegmatite Deposits of Virginia. Bulletin 33. Virginia Geological Survey 123pp.
 
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