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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Microcline from
Coatesville pegmatite locality, Coatesville, Chester County, Pennsylvania, USA


Locality type:Pegmatite
Classification
Species:Microcline
Formula:K(AlSi3O8)
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Microcline data
Locality Data:Click here to view Coatesville pegmatite locality, Coatesville, Chester County, Pennsylvania, USA
Data Identifiers
Mindat Occurrence Record ID:360063
Long-form Identifier:1:3:360063:4
GUID (UUID V4):0
Nearest other occurrences of Microcline
10.5km (6.5 miles) ⓘChester County Poorhouse Quarry, West Bradford Township, Chester County, Pennsylvania, USA
15.0km (9.3 miles) ⓘHenry Pusey's quarry, Willowdale, East Marlboro Township, Chester County, Pennsylvania, USA
24.1km (15.0 miles) ⓘFrench Creek Mines, Saint Peters, Warwick Township, Chester County, Pennsylvania, USA
27.6km (17.1 miles) ⓘWoodlawn Quarry, Wilmington, New Castle County, Delaware, USA
32.2km (20.0 miles) ⓘWest Branch pegmatite, Newark, New Castle County, Delaware, USA
33.7km (20.9 miles) ⓘLenni, Middletown Township, Delaware County, Pennsylvania, USA
34.6km (21.5 miles) ⓘSycamore Mill (Bishop's Mill), Sycamore Mills, Upper Providence Township, Delaware County, Pennsylvania, USA
34.7km (21.5 miles) ⓘSycamore Mills, Upper Providence Township, Delaware County, Pennsylvania, USA
35.3km (21.9 miles) ⓘBlue Hill, Media, Upper Providence Township, Delaware County, Pennsylvania, USA
35.9km (22.3 miles) ⓘFeldspar Quarry, Mineral Hill, Elwyn, Middletown Township, Delaware County, Pennsylvania, USA
References
Lapham, Davis M., Geyer, Alan R., Geyer, Alan R., Smith II, Robert C., Barnes, John H. (1976) Mineral Collecting in Pennsylvania. Bulletin G33 (4th ed.). Pennsylvania Geological Survey pp.73-75
 
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