Vote for your favorite mineral in #MinCup26! - Sphalerite vs. Anorthite
Both zinc ore Sphalerite and calcium plagioclase feldspar Anorthite have perfect cleavage that will split cleanly if you hit them with a hammer, but only one can claim a larger split of your votes!
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Actinolite from
Highway 50 intersection, Centreville, Culpeper Basin, Fairfax County, Virginia, USA


Locality type:Occurrence
Classification
Species:Actinolite
Formula:◻Ca2(Mg4.5-2.5Fe0.5-2.5)Si8O22(OH)2
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Actinolite data
Locality Data:Click here to view Highway 50 intersection, Centreville, Culpeper Basin, Fairfax County, Virginia, USA
Data Identifiers
Mindat Occurrence Record ID:346018
Long-form Identifier:1:3:346018:4
GUID (UUID V4):0
Nearest other occurrences of Actinolite
12.8km (7.9 miles) ⓘFairfax Quarry, Centreville, Culpeper Basin, Fairfax County, Virginia, USA
18.3km (11.4 miles) ⓘVulcan Materials Company Crushed Stone Quarry (Manassas Quarry), Manassas, Prince William County, Virginia, USA
23.3km (14.5 miles) ⓘGainesville Quarry, Gainesville, Prince William County, Virginia, USA
26.4km (16.4 miles) ⓘHunting Hill Quarry, Rockville, Montgomery County, Maryland, USA
26.9km (16.7 miles) ⓘSoapstone Valley, NW Washington, District of Columbia (Washington D.C.), USA
27.0km (16.8 miles) ⓘNew Goose Creek Quarry, Leesburg, Loudoun County, Virginia, USA
30.9km (19.2 miles) ⓘMillbrook Quarry (Haymarket Quarry), Haymarket, Prince William County, Virginia, USA
31.6km (19.6 miles) ⓘPotomac Mine, Leesburg, Loudoun County, Virginia, USA
31.8km (19.7 miles) ⓘVeasco Quarry (MRDS - 10276445), Oatlands, Loudoun County, Virginia, USA
32.0km (19.9 miles) ⓘCabin Branch Mine (Dumfries Mine), Dumfries, Gold-Pyrite Belt, Prince William County, Virginia, USA
References
Dietrich, R. V. (1990) Minerals of Virginia. Virginia Geological Survey.
 
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