Log InRegister
Home PageAbout MindatThe Mindat ManualHistory of MindatCopyright StatusWho We AreContact UsAdvertise on Mindat
Donate to MindatCorporate SponsorshipSponsor a PageSponsored PagesMindat AdvertisersAdvertise on Mindat
Learning CenterWhat is a mineral?The most common minerals on earthInformation for EducatorsMindat Articles
Minerals by PropertiesMinerals by ChemistryAdvanced Locality SearchRandom MineralRandom LocalitySearch by minIDLocalities Near MeSearch ArticlesSearch GlossaryMore Search Options
Search For:
Mineral Name:
Locality Name:
Keyword(s):
 
The Mindat ManualAdd a New PhotoRate PhotosLocality Edit ReportCoordinate Completion ReportAdd Glossary Item
Mining CompaniesStatisticsThe ElementsUsersBooks & MagazinesMineral MuseumsMineral Shows & EventsThe Mindat DirectoryDevice Settings
Photo SearchPhoto GalleriesNew Photos TodayNew Photos YesterdayMembers' Photo GalleriesPast Photo of the Day Gallery

District of Columbia (Washington D.C.), USAi
Regional Level Types
District of Columbia (Washington D.C.)Federal District
USACountry

This page kindly sponsored by Bill Cordua
Key
Lock Map
Neighbouring regions:
Locality type:Federal District
Largest Settlements:
PlacePopulation
Washington, D.C.601,723 (2017)
Shaw17,639 (2018)
Adams Morgan15,830 (2018)
Chevy Chase9,545 (2018)
Bloomingdale4,980 (2018)
Museums in region:


Washington D. C. is a 100 square mile area set aside to serve as the Capital of the United States of America. It is situated near the "Fall Line" separating the Piedmont Province's older rocks, deformed during the Taconic Orogeny, from the Cretaceous and Tertiary rocks of the Coastal Plain. That line is marked by a chain of rapids and falls as rivers, such as the Potomac, move from resistant metamorphic and igneous rocks to softer, less consolidated sedimentary rocks. Most of the city is built on the marshy terrain of the Coastal Plain. Piedmont Province rocks are widely exposed in Rock Creek Park and at Great Falls, a few miles northwest of the District's limits. Coastal plain rocks can be seen at Fort Totten Park and other spots in the eastern part of the city. Outcrops in the District are otherwise sparse. Most of the reported minerals are from ephemeral construction sites and road cuts. However a great variety of building stones are on display in the many government buildings and monuments. Some of the world's best mineral and geology displays are in the Natural History Museum of the Smithsonian Institute.

Select Mineral List Type

Standard Detailed Strunz Dana Chemical Elements

Commodity List

This is a list of exploitable or exploited mineral commodities recorded from this region.


Mineral List

Mineral list contains entries from the region specified including sub-localities

28 valid minerals.

Detailed Mineral List:

Actinolite
Formula: ☐{Ca2}{Mg4.5-2.5Fe0.5-2.5}(Si8O22)(OH)2
Reference: Bernstein, Lawrence (1976) Minerals of Washington D.C. and vicinity: U.S. Geological Survey: Open File Report 76-849, 183 p.
Analcime
Formula: Na(AlSi2O6) · H2O
Reference: Bernstein, Lawrence (1976) Minerals of Washington D.C. and vicinity: U.S. Geological Survey: Open File Report 76-849, 183 p.
Andalusite
Formula: Al2(SiO4)O
Reference: Bernstein, Lawrence (1976) Minerals of Washington D.C. and vicinity: U.S. Geological Survey: Open File Report 76-849, 183 p.
'Apatite'
Reference: Bernstein, Lawrence (1976) Minerals of Washington D.C. and vicinity: U.S. Geological Survey: Open File Report 76-849, 183 p.
'Biotite'
Reference: Bernstein, Lawrence (1976) Minerals of Washington D.C. and vicinity: U.S. Geological Survey: Open File Report 76-849, 183 p.
Calcite
Formula: CaCO3
Reference: Bernstein, Lawrence (1976) Minerals of Washington D.C. and vicinity: U.S. Geological Survey: Open File Report 76-849, 183 p.
Cerussite
Formula: PbCO3
Reference: Bernstein, Lawrence (1976) Minerals of Washington D.C. and vicinity: U.S. Geological Survey: Open File Report 76-849, 183 p.
'Chabazite'
Reference: Bernstein, Lawrence (1976) Minerals of Washington D.C. and vicinity: U.S. Geological Survey: Open File Report 76-849, 183 p.
'Chlorite Group'
Reference: Bernstein, Lawrence (1976) Minerals of Washington D.C. and vicinity: U.S. Geological Survey: Open File Report 76-849, 183 p.
Chrysocolla
Formula: Cu2-xAlx(H2-xSi2O5)(OH)4 · nH2O
Reference: Bernstein, Lawrence (1976) Minerals of Washington D.C. and vicinity: U.S. Geological Survey: Open File Report 76-849, 183 p.
Clinochlore
Formula: Mg5Al(AlSi3O10)(OH)8
Reference: Rule, A. C., & Bailey, S. W. (1987). Refinement of the crystal structure of a monoclinic ferroan clinochlore. Clays and Clay Minerals, 35(2), 129-138.
Galena
Formula: PbS
Reference: Bernstein, Lawrence (1976) Minerals of Washington D.C. and vicinity: U.S. Geological Survey: Open File Report 76-849, 183 p.
Goethite
Formula: α-Fe3+O(OH)
Reference: Bernstein, Lawrence (1976) Minerals of Washington D.C. and vicinity: U.S. Geological Survey: Open File Report 76-849, 183 p.
Gold
Formula: Au
Reference: Bernstein, Lawrence (1976) Minerals of Washington D.C. and vicinity: U.S. Geological Survey: Open File Report 76-849, 183 p.
'Hornblende'
Reference: Bernstein, Lawrence (1976) Minerals of Washington D.C. and vicinity: U.S. Geological Survey: Open File Report 76-849, 183 p.
Ilmenite
Formula: Fe2+TiO3
Reference: Bernstein, Lawrence (1976) Minerals of Washington D.C. and vicinity: U.S. Geological Survey: Open File Report 76-849, 183 p.
Kyanite
Formula: Al2(SiO4)O
Reference: Bernstein, Lawrence (1976) Minerals of Washington D.C. and vicinity: U.S. Geological Survey: Open File Report 76-849, 183 p.
Laumontite
Formula: CaAl2Si4O12 · 4H2O
Reference: Bernstein, Lawrence (1976) Minerals of Washington D.C. and vicinity: U.S. Geological Survey: Open File Report 76-849, 183 p.
Lepidocrocite
Formula: γ-Fe3+O(OH)
Reference: Bernstein, Lawrence (1976) Minerals of Washington D.C. and vicinity: U.S. Geological Survey: Open File Report 76-849, 183 p.
'Limonite'
Formula: (Fe,O,OH,H2O)
Reference: AmMin 20:311-312
Magnetite
Formula: Fe2+Fe3+2O4
Reference: A.Mathauser collection
Marcasite
Formula: FeS2
Reference: Bernstein, Lawrence (1976) Minerals of Washington D.C. and vicinity: U.S. Geological Survey: Open File Report 76-849, 183 p.
Muscovite
Formula: KAl2(AlSi3O10)(OH)2
Opal
Formula: SiO2 · nH2O
Reference: Bernstein, Lawrence (1976) Minerals of Washington D.C. and vicinity: U.S. Geological Survey: Open File Report 76-849, 183 p.
Piemontite
Formula: {Ca2}{Al2Mn3+}(Si2O7)(SiO4)O(OH)
Reference: Bernstein, Lawrence (1976) Minerals of Washington D.C. and vicinity: U.S. Geological Survey: Open File Report 76-849, 183 p.
'Psilomelane'
Reference: Bernstein, Lawrence (1976) Minerals of Washington D.C. and vicinity: U.S. Geological Survey: Open File Report 76-849, 183 p.
Pyrite
Formula: FeS2
Reference: Bernstein, Lawrence (1976) Minerals of Washington D.C. and vicinity: U.S. Geological Survey: Open File Report 76-849, 183 p.
Quartz
Formula: SiO2
Reference: Bernstein, Lawrence (1976) Minerals of Washington D.C. and vicinity: U.S. Geological Survey: Open File Report 76-849, 183 p.
Rutile
Formula: TiO2
Reference: Bernstein, Lawrence (1976) Minerals of Washington D.C. and vicinity: U.S. Geological Survey: Open File Report 76-849, 183 p.
Schorl
Formula: Na(Fe2+3)Al6(Si6O18)(BO3)3(OH)3(OH)
Reference: Bernstein, Lawrence (1976) Minerals of Washington D.C. and vicinity: U.S. Geological Survey: Open File Report 76-849, 183 p.
'Serpentine Subgroup'
Formula: D3[Si2O5](OH)4 D= Mg, Fe, Ni, Mn, Al, Zn
Reference: USGS - National Geochemical Database :Rocks - File W170069
Staurolite
Formula: Fe2+2Al9Si4O23(OH)
Reference: Bernstein, Lawrence (1976) Minerals of Washington D.C. and vicinity: U.S. Geological Survey: Open File Report 76-849, 183 p.
Talc
Formula: Mg3Si4O10(OH)2
Reference: Bernstein, Lawrence (1976) Minerals of Washington D.C. and vicinity: U.S. Geological Survey: Open File Report 76-849, 183 p.
Titanite
Formula: CaTi(SiO4)O
Reference: Bernstein, Lawrence (1976) Minerals of Washington D.C. and vicinity: U.S. Geological Survey: Open File Report 76-849, 183 p.
Tremolite
Formula: ☐{Ca2}{Mg5}(Si8O22)(OH)2
Reference: Bernstein, Lawrence (1976) Minerals of Washington D.C. and vicinity: U.S. Geological Survey: Open File Report 76-849, 183 p.
Vivianite
Formula: Fe2+3(PO4)2 · 8H2O

List of minerals arranged by Strunz 10th Edition classification

Group 1 - Elements
Gold1.AA.05Au
Group 2 - Sulphides and Sulfosalts
Galena2.CD.10PbS
Marcasite2.EB.10aFeS2
Pyrite2.EB.05aFeS2
Group 4 - Oxides and Hydroxides
Goethite4.00.α-Fe3+O(OH)
Ilmenite4.CB.05Fe2+TiO3
Lepidocrocite4.FE.15γ-Fe3+O(OH)
Magnetite4.BB.05Fe2+Fe3+2O4
Opal4.DA.10SiO2 · nH2O
Quartz4.DA.05SiO2
Rutile4.DB.05TiO2
Group 5 - Nitrates and Carbonates
Calcite5.AB.05CaCO3
Cerussite5.AB.15PbCO3
Group 8 - Phosphates, Arsenates and Vanadates
Vivianite8.CE.40Fe2+3(PO4)2 · 8H2O
Group 9 - Silicates
Actinolite9.DE.10☐{Ca2}{Mg4.5-2.5Fe0.5-2.5}(Si8O22)(OH)2
Analcime9.GB.05Na(AlSi2O6) · H2O
Andalusite9.AF.10Al2(SiO4)O
Chrysocolla9.ED.20Cu2-xAlx(H2-xSi2O5)(OH)4 · nH2O
Clinochlore9.EC.55Mg5Al(AlSi3O10)(OH)8
Kyanite9.AF.15Al2(SiO4)O
Laumontite9.GB.10CaAl2Si4O12 · 4H2O
Muscovite9.EC.15KAl2(AlSi3O10)(OH)2
Piemontite9.BG.05{Ca2}{Al2Mn3+}(Si2O7)(SiO4)O(OH)
Schorl9.CK.05Na(Fe2+3)Al6(Si6O18)(BO3)3(OH)3(OH)
Staurolite9.AF.30Fe2+2Al9Si4O23(OH)
Talc9.EC.05Mg3Si4O10(OH)2
Titanite9.AG.15CaTi(SiO4)O
Tremolite9.DE.10☐{Ca2}{Mg5}(Si8O22)(OH)2
Unclassified Minerals, Rocks, etc.
'Apatite'-
'Biotite'-
'Chabazite'-
'Chlorite Group'-
'Hornblende'-
'Limonite'-(Fe,O,OH,H2O)
'Psilomelane'-
'Serpentine Subgroup'-D3[Si2O5](OH)4 D= Mg, Fe, Ni, Mn, Al, Zn

List of minerals arranged by Dana 8th Edition classification

Group 1 - NATIVE ELEMENTS AND ALLOYS
Metals, other than the Platinum Group
Gold1.1.1.1Au
Group 2 - SULFIDES
AmXp, with m:p = 1:1
Galena2.8.1.1PbS
AmBnXp, with (m+n):p = 1:2
Marcasite2.12.2.1FeS2
Pyrite2.12.1.1FeS2
Group 4 - SIMPLE OXIDES
A2X3
Ilmenite4.3.5.1Fe2+TiO3
AX2
Rutile4.4.1.1TiO2
Group 6 - HYDROXIDES AND OXIDES CONTAINING HYDROXYL
XO(OH)
Goethite6.1.1.2α-Fe3+O(OH)
Lepidocrocite6.1.2.2γ-Fe3+O(OH)
Group 7 - MULTIPLE OXIDES
AB2X4
Magnetite7.2.2.3Fe2+Fe3+2O4
Group 14 - ANHYDROUS NORMAL CARBONATES
A(XO3)
Calcite14.1.1.1CaCO3
Cerussite14.1.3.4PbCO3
Group 40 - HYDRATED NORMAL PHOSPHATES,ARSENATES AND VANADATES
A3(XO4)2·xH2O
Vivianite40.3.6.1Fe2+3(PO4)2 · 8H2O
Group 52 - NESOSILICATES Insular SiO4 Groups and O,OH,F,H2O
Insular SiO4 Groups and O, OH, F, and H2O with cations in [4] and >[4] coordination
Andalusite52.2.2b.1Al2(SiO4)O
Kyanite52.2.2c.1Al2(SiO4)O
Staurolite52.2.3.1Fe2+2Al9Si4O23(OH)
Insular SiO4 Groups and O, OH, F, and H2O with cations in [6] and/or >[6] coordination
Titanite52.4.3.1CaTi(SiO4)O
Group 58 - SOROSILICATES Insular, Mixed, Single, and Larger Tetrahedral Groups
Insular, Mixed, Single, and Larger Tetrahedral Groups with cations in [6] and higher coordination; single and double groups (n = 1, 2)
Piemontite58.2.1a.11{Ca2}{Al2Mn3+}(Si2O7)(SiO4)O(OH)
Group 61 - CYCLOSILICATES Six-Membered Rings
Six-Membered Rings with borate groups
Schorl61.3.1.10Na(Fe2+3)Al6(Si6O18)(BO3)3(OH)3(OH)
Group 66 - INOSILICATES Double-Width,Unbranched Chains,(W=2)
Amphiboles - Mg-Fe-Mn-Li subgroup
Tremolite66.1.3a.1☐{Ca2}{Mg5}(Si8O22)(OH)2
Group 71 - PHYLLOSILICATES Sheets of Six-Membered Rings
Sheets of 6-membered rings with 2:1 layers
Muscovite71.2.2a.1KAl2(AlSi3O10)(OH)2
Talc71.2.1.3Mg3Si4O10(OH)2
Sheets of 6-membered rings interlayered 1:1, 2:1, and octahedra
Clinochlore71.4.1.4Mg5Al(AlSi3O10)(OH)8
Group 74 - PHYLLOSILICATES Modulated Layers
Modulated Layers with joined strips
Chrysocolla74.3.2.1Cu2-xAlx(H2-xSi2O5)(OH)4 · nH2O
Group 75 - TECTOSILICATES Si Tetrahedral Frameworks
Si Tetrahedral Frameworks - SiO2 with [4] coordinated Si
Quartz75.1.3.1SiO2
Si Tetrahedral Frameworks - SiO2 with H2O and organics
Opal75.2.1.1SiO2 · nH2O
Group 77 - TECTOSILICATES Zeolites
Zeolite group - True zeolites
Analcime77.1.1.1Na(AlSi2O6) · H2O
Laumontite77.1.1.4CaAl2Si4O12 · 4H2O
Unclassified Minerals, Mixtures, etc.
Actinolite-☐{Ca2}{Mg4.5-2.5Fe0.5-2.5}(Si8O22)(OH)2
'Apatite'-
'Biotite'-
'Chabazite'-
'Chlorite Group'-
'Hornblende'-
'Limonite'-(Fe,O,OH,H2O)
'Psilomelane'-
'Serpentine Subgroup'-D3[Si2O5](OH)4 D= Mg, Fe, Ni, Mn, Al, Zn

List of minerals for each chemical element

HHydrogen
H VivianiteFe32+(PO4)2 · 8H2O
H MuscoviteKAl2(AlSi3O10)(OH)2
H Limonite(Fe,O,OH,H2O)
H Goethiteα-Fe3+O(OH)
H TalcMg3Si4O10(OH)2
H StauroliteFe22+Al9Si4O23(OH)
H Lepidocrociteγ-Fe3+O(OH)
H ChrysocollaCu2-xAlx(H2-xSi2O5)(OH)4 · nH2O
H Piemontite{Ca2}{Al2Mn3+}(Si2O7)(SiO4)O(OH)
H OpalSiO2 · nH2O
H LaumontiteCaAl2Si4O12 · 4H2O
H SchorlNa(Fe32+)Al6(Si6O18)(BO3)3(OH)3(OH)
H AnalcimeNa(AlSi2O6) · H2O
H Tremolite☐{Ca2}{Mg5}(Si8O22)(OH)2
H ClinochloreMg5Al(AlSi3O10)(OH)8
H Serpentine SubgroupD3[Si2O5](OH)4 D= Mg, Fe, Ni, Mn, Al, Zn
H Actinolite☐{Ca2}{Mg4.5-2.5Fe0.5-2.5}(Si8O22)(OH)2
BBoron
B SchorlNa(Fe32+)Al6(Si6O18)(BO3)3(OH)3(OH)
CCarbon
C CerussitePbCO3
C CalciteCaCO3
OOxygen
O VivianiteFe32+(PO4)2 · 8H2O
O MuscoviteKAl2(AlSi3O10)(OH)2
O Limonite(Fe,O,OH,H2O)
O Goethiteα-Fe3+O(OH)
O TalcMg3Si4O10(OH)2
O RutileTiO2
O StauroliteFe22+Al9Si4O23(OH)
O TitaniteCaTi(SiO4)O
O QuartzSiO2
O Lepidocrociteγ-Fe3+O(OH)
O ChrysocollaCu2-xAlx(H2-xSi2O5)(OH)4 · nH2O
O Piemontite{Ca2}{Al2Mn3+}(Si2O7)(SiO4)O(OH)
O OpalSiO2 · nH2O
O LaumontiteCaAl2Si4O12 · 4H2O
O CerussitePbCO3
O KyaniteAl2(SiO4)O
O AndalusiteAl2(SiO4)O
O SchorlNa(Fe32+)Al6(Si6O18)(BO3)3(OH)3(OH)
O CalciteCaCO3
O IlmeniteFe2+TiO3
O AnalcimeNa(AlSi2O6) · H2O
O Tremolite☐{Ca2}{Mg5}(Si8O22)(OH)2
O ClinochloreMg5Al(AlSi3O10)(OH)8
O Serpentine SubgroupD3[Si2O5](OH)4 D= Mg, Fe, Ni, Mn, Al, Zn
O MagnetiteFe2+Fe23+O4
O Actinolite☐{Ca2}{Mg4.5-2.5Fe0.5-2.5}(Si8O22)(OH)2
NaSodium
Na SchorlNa(Fe32+)Al6(Si6O18)(BO3)3(OH)3(OH)
Na AnalcimeNa(AlSi2O6) · H2O
MgMagnesium
Mg TalcMg3Si4O10(OH)2
Mg Tremolite☐{Ca2}{Mg5}(Si8O22)(OH)2
Mg ClinochloreMg5Al(AlSi3O10)(OH)8
Mg Serpentine SubgroupD3[Si2O5](OH)4 D= Mg, Fe, Ni, Mn, Al, Zn
Mg Actinolite☐{Ca2}{Mg4.5-2.5Fe0.5-2.5}(Si8O22)(OH)2
AlAluminium
Al MuscoviteKAl2(AlSi3O10)(OH)2
Al StauroliteFe22+Al9Si4O23(OH)
Al ChrysocollaCu2-xAlx(H2-xSi2O5)(OH)4 · nH2O
Al Piemontite{Ca2}{Al2Mn3+}(Si2O7)(SiO4)O(OH)
Al LaumontiteCaAl2Si4O12 · 4H2O
Al KyaniteAl2(SiO4)O
Al AndalusiteAl2(SiO4)O
Al SchorlNa(Fe32+)Al6(Si6O18)(BO3)3(OH)3(OH)
Al AnalcimeNa(AlSi2O6) · H2O
Al ClinochloreMg5Al(AlSi3O10)(OH)8
Al Serpentine SubgroupD3[Si2O5](OH)4 D= Mg, Fe, Ni, Mn, Al, Zn
SiSilicon
Si MuscoviteKAl2(AlSi3O10)(OH)2
Si TalcMg3Si4O10(OH)2
Si StauroliteFe22+Al9Si4O23(OH)
Si TitaniteCaTi(SiO4)O
Si QuartzSiO2
Si ChrysocollaCu2-xAlx(H2-xSi2O5)(OH)4 · nH2O
Si Piemontite{Ca2}{Al2Mn3+}(Si2O7)(SiO4)O(OH)
Si OpalSiO2 · nH2O
Si LaumontiteCaAl2Si4O12 · 4H2O
Si KyaniteAl2(SiO4)O
Si AndalusiteAl2(SiO4)O
Si SchorlNa(Fe32+)Al6(Si6O18)(BO3)3(OH)3(OH)
Si AnalcimeNa(AlSi2O6) · H2O
Si Tremolite☐{Ca2}{Mg5}(Si8O22)(OH)2
Si ClinochloreMg5Al(AlSi3O10)(OH)8
Si Serpentine SubgroupD3[Si2O5](OH)4 D= Mg, Fe, Ni, Mn, Al, Zn
Si Actinolite☐{Ca2}{Mg4.5-2.5Fe0.5-2.5}(Si8O22)(OH)2
PPhosphorus
P VivianiteFe32+(PO4)2 · 8H2O
SSulfur
S MarcasiteFeS2
S PyriteFeS2
S GalenaPbS
KPotassium
K MuscoviteKAl2(AlSi3O10)(OH)2
CaCalcium
Ca TitaniteCaTi(SiO4)O
Ca Piemontite{Ca2}{Al2Mn3+}(Si2O7)(SiO4)O(OH)
Ca LaumontiteCaAl2Si4O12 · 4H2O
Ca CalciteCaCO3
Ca Tremolite☐{Ca2}{Mg5}(Si8O22)(OH)2
Ca Actinolite☐{Ca2}{Mg4.5-2.5Fe0.5-2.5}(Si8O22)(OH)2
TiTitanium
Ti RutileTiO2
Ti TitaniteCaTi(SiO4)O
Ti IlmeniteFe2+TiO3
MnManganese
Mn Piemontite{Ca2}{Al2Mn3+}(Si2O7)(SiO4)O(OH)
Mn Serpentine SubgroupD3[Si2O5](OH)4 D= Mg, Fe, Ni, Mn, Al, Zn
FeIron
Fe VivianiteFe32+(PO4)2 · 8H2O
Fe Limonite(Fe,O,OH,H2O)
Fe Goethiteα-Fe3+O(OH)
Fe MarcasiteFeS2
Fe PyriteFeS2
Fe StauroliteFe22+Al9Si4O23(OH)
Fe Lepidocrociteγ-Fe3+O(OH)
Fe SchorlNa(Fe32+)Al6(Si6O18)(BO3)3(OH)3(OH)
Fe IlmeniteFe2+TiO3
Fe Serpentine SubgroupD3[Si2O5](OH)4 D= Mg, Fe, Ni, Mn, Al, Zn
Fe MagnetiteFe2+Fe23+O4
Fe Actinolite☐{Ca2}{Mg4.5-2.5Fe0.5-2.5}(Si8O22)(OH)2
NiNickel
Ni Serpentine SubgroupD3[Si2O5](OH)4 D= Mg, Fe, Ni, Mn, Al, Zn
CuCopper
Cu ChrysocollaCu2-xAlx(H2-xSi2O5)(OH)4 · nH2O
ZnZinc
Zn Serpentine SubgroupD3[Si2O5](OH)4 D= Mg, Fe, Ni, Mn, Al, Zn
AuGold
Au GoldAu
PbLead
Pb GalenaPbS
Pb CerussitePbCO3

References

Sort by

Year (asc) Year (desc) Author (A-Z) Author (Z-A)
Ulke, Titus (1935) Minerals of the District of Columbia and vicinity with a pertinent bibliography: Rocks and Minerals: 11 (1): 7-9.
Ulke, Titus (1935) Minerals of the District of Columbia and vicinity with a pertinent bibliography: Rocks and Minerals – part 2: 11 (2): 26-28.
Ulke, Titus (1935) Minerals of the District of Columbia and vicinity with a pertinent bibliography - conclusion: Rocks and Minerals: 11 (3): 42-45.
Benn, J. (1935) Note on the occurrence of vivianite in the District of Columbia: American Mineralogist: 20 (4): 311-312.
Bernstein, Lawrence (1976) Minerals of Washington D.C. and vicinity: U.S. Geological Survey: Open File Report 76-849, 183 p.
Moore, J. and J. Jackson, editors (1989) Geology, hydrology and history of the Washington D. C. area: American Geological Institute, 114 p.
Means, J. (2010) Roadside geology of Maryland, Delaware and Washington, D.C.: Mountain Press Publishers, 346 p.

Localities in this Region
Show map


This page contains all mineral locality references listed on mindat.org. This does not claim to be a complete list. If you know of more minerals from this site, please register so you can add to our database. This locality information is for reference purposes only. You should never attempt to visit any sites listed in mindat.org without first ensuring that you have the permission of the land and/or mineral rights holders for access and that you are aware of all safety precautions necessary.
Mineral and/or Locality  
Mindat.org is an outreach project of the Hudson Institute of Mineralogy, a 501(c)(3) not-for-profit organization. Public Relations by Blytheweigh.
Copyright © mindat.org and the Hudson Institute of Mineralogy 1993-2019, except where stated. Mindat.org relies on the contributions of thousands of members and supporters.
Privacy Policy - Terms & Conditions - Contact Us Current server date and time: January 22, 2019 05:03:42
View slideshow - Go to top of page