Ref: Minerals of the Washington, D.C Area.

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Original Entry	Ref: Minerals of the Washington, D.C Area.
Mindat Ref. ID	15975002	Long-form Identifier	mindat:1:5:15975002:7
GUID	770c845a-7144-4ce2-bd66-9bc4258473e9
Full Reference	Ref: Minerals of the Washington, D.C Area.
Plain Text	Ref: Minerals of the Washington, D.C Area.

Map of Localities

Mineral Occurrences

Locality	Mineral(s)
Cape Sable, Magothy River, Arnold, Anne Arundel County, Maryland, USA	ⓘ Alum Group, ⓘ Melanterite
Hanover, Anne Arundel County, Maryland, USA	ⓘ Hematite, ⓘ Marcasite, ⓘ Siderite
Pinehurst, Anne Arundel County, Maryland, USA	ⓘ Hematite, ⓘ Limonite, ⓘ Marcasite
Delight Quarry (Soldier's Delight Quarry; Dyer Quarry), Soldiers' Delight ridge, Delight, Baltimore County, Maryland, USA	ⓘ Antigorite, ⓘ Calcite, ⓘ Chlorite Group, ⓘ Chromite, ⓘ Chrysotile, ⓘ Limonite, ⓘ Lizardite, ⓘ Quartz, ⓘ Rutile
Marriottsville Quarry, Hernwood, Baltimore County, Maryland, USA	ⓘ Apatite, ⓘ Biotite, ⓘ Calcite, ⓘ Chalcopyrite, ⓘ Diopside, ⓘ Dolomite, ⓘ Dravite, ⓘ Graphite, ⓘ Limonite, ⓘ Microcline, ⓘ Muscovite, ⓘ Phlogopite, ⓘ Pyrite, ⓘ Pyrrhotite, ⓘ Quartz, ⓘ Rutile, ⓘ Schorl, ⓘ Talc, ⓘ Tremolite
Weir Mine, Holbrook, Baltimore County, Maryland, USA	ⓘ Chlorite Group, ⓘ Chromite
Marriottsville flagstone Quarries, Baltimore County, Maryland, USA	ⓘ Schorl
Marriottsville Talc Quarries, Carroll County, Maryland, USA	ⓘ Talc
Cockeysville Marble occurrence, Howard County, Maryland, USA	ⓘ Phlogopite, ⓘ Talc, ⓘ Tremolite, ⓘ Vermiculite
Ellicott City, Howard County, Maryland, USA	ⓘ Biotite, ⓘ Calcite, ⓘ Fayalite-Forsterite Series, ⓘ Feldspar Group, ⓘ Quartz, ⓘ Stilbite Subgroup
Cooper Run, Ellicott City, Howard County, Maryland, USA	ⓘ Nontronite
Glenelg, Howard County, Maryland, USA	ⓘ Limonite
Mount Saint Clement College Quarry, Ilchester, Howard County, Maryland, USA	ⓘ Microcline, ⓘ Quartz
Pine Orchard, Howard County, Maryland, USA	ⓘ Autunite
Patuxent River Bridge, Route 29, Scaggsville, Howard County, Maryland, USA	ⓘ Schorl
Tunnel Feldspar Mine, Howard County, Maryland, USA	ⓘ Garnet Group, ⓘ Kyanite, ⓘ Limonite, ⓘ Quartz, ⓘ Staurolite
Burtonsville, Montgomery County, Maryland, USA	ⓘ Gahnite, ⓘ Spessartine
Ednor Steatite Locality, Ednor, Montgomery County, Maryland, USA	ⓘ Chlorite Group, ⓘ Limonite, ⓘ Magnesite, ⓘ Magnetite, ⓘ Siderite, ⓘ Talc
Ellicott Gold Mine (Sandy Spring Mine; Brookeville Mine), Montgomery County, Maryland, USA	ⓘ Gold
Gaithersburg, Montgomery County, Maryland, USA	ⓘ Azurite, ⓘ Copper, ⓘ Cuprite, ⓘ Hematite, ⓘ Limonite, ⓘ Malachite, ⓘ Specularite
Lamberton Branch locality, Silver Spring, Montgomery County, Maryland, USA	ⓘ Almandine, ⓘ Chlorite Group, ⓘ Clinozoisite, ⓘ Epidote, ⓘ Galena, ⓘ Limonite, ⓘ Pyrite, ⓘ Quartz, ⓘ Schorl, ⓘ Staurolite

	Ref.: Minerals in the Washington D.C. Area.
	Minerals of the Washington D.C. area
	Minerals in the Washington D.C. Area.
	Bernstein, (1980) Minerals of the Washington D.C. Area.
	Lawrence R. Bernstein (1980) Minerals of the Washington, D.C. Area
	Mines of the Washington D.C Area
	Bernstein, Lawrence R. (1980) Minerals of the Washington, D.C. area. Maryland Geological Survey Educational Series 5, 148 pages.
	Washington, D.C., U.S. Dept. Commerce Area Redevel. Adm., 57.
	*Wilson, Wendell E. (1982) What's New in Minerals? - Washington, D.C. Show 1982. The Mineralogical Record, 13 (5) 315*
	Taylor Jr., H.A. (1988) Graphite, in Minerals Yearbook, 1988. United States Bureau of Mines, Washington D.C.: 1 (Metals and Minerals): 459-469.
	*(1974) Water from the Coastal Plain aquifers in the Washington, D.C., metropolitan area. Circular* 697. US Geological Survey doi:10.3133/cir697**

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Ref: Minerals of the Washington, D.C Area.

Map of Localities

Mineral Occurrences

See Also