Vote for your favorite mineral in #MinCup26! - Bournonite vs. Vesuvianite
Cogwheels of bournonite are up against colourful vesuvianite.
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Dravite from
McMahon Quarry (Greenspring Quarry), Pikesville, Baltimore County, Maryland, USA


Locality type:Quarry
Classification
Species:Dravite
Formula:NaMg3Al6(Si6O18)(BO3)3(OH)3(OH)
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Dravite data
Locality Data:Click here to view McMahon Quarry (Greenspring Quarry), Pikesville, Baltimore County, Maryland, USA
Data Identifiers
Mindat Occurrence Record ID:201808
Long-form Identifier:1:3:201808:9
GUID (UUID V4):0
Nearest other occurrences of Dravite
9.9km (6.2 miles) ⓘMartin Marietta Texas Quarry, Cockeysville, Baltimore County, Maryland, USA
15.2km (9.4 miles) ⓘMarriottsville Quarry, Hernwood, Baltimore County, Maryland, USA
32.8km (20.4 miles) ⓘBrighton Dam Road Quarry (Howard-Montgomery Quarry), Howard County, Maryland, USA
57.2km (35.5 miles) ⓘHunting Hill Quarry, Rockville, Montgomery County, Maryland, USA
58.3km (36.2 miles) ⓘLine pit (Lowe's Mine), Cecil County, Maryland, USA
58.3km (36.2 miles) ⓘLine pit (Lowe's Chromite Mine), Fulton Township, Lancaster County, Pennsylvania, USA
87.7km (54.5 miles) ⓘCentreville, Culpeper Basin, Fairfax County, Virginia, USA
93.4km (58.0 miles) ⓘBull Run Quarry, Conklin, Loudoun County, Virginia, USA
99.2km (61.7 miles) ⓘVulcan Materials Company Crushed Stone Quarry (Manassas Quarry), Manassas, Prince William County, Virginia, USA
References
Bernstein, Lawrence R. (1976) Minerals of Washington, D.C. and vicinity. Open-File Report Vol. 76-849. US Geological Survey doi:10.3133/ofr76849
 
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