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Cabin Branch Mine (Dumfries Mine), Dumfries, Gold-Pyrite Belt, Prince William County, Virginia, USAi
Regional Level Types
Cabin Branch Mine (Dumfries Mine)Mine
Dumfries- not defined -
Gold-Pyrite BeltBelt
Prince William CountyCounty
VirginiaState
USACountry

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PhotosMapsSearch
Latitude & Longitude (WGS84):
38° 34' 29'' North , 77° 20' 54'' West
Latitude & Longitude (decimal):
38.57472,-77.34834
GeoHash:
G#: dqbgrykdj
GRN:
N26W44
Type:
Mine
Köppen climate type:
Cfa : Humid subtropical climate
Nearest Settlements:
PlacePopulationDistance
Dumfries5,217 (2017)1.9km
Triangle8,188 (2011)3.3km
Montclair19,570 (2011)4.1km
Quantico Station4,452 (2011)6.3km
Cherry Hill16,000 (2011)7.1km
Nearest Clubs:
Local clubs are the best way to get access to collecting localities
ClubLocationDistance
Northern Virginia Mineral Club, Inc.Arlington, Virginia40km
Southern Maryland Rock and Mineral ClubClinton, Maryland44km
Mindat Locality ID:
104524
Long-form identifier:
mindat:1:2:104524:9
GUID (UUID V4):
ae154b08-0754-4f8b-af69-3dddbfcc67b7


The Cabin Branch Pyrite Mine was opened around 1889 and worked until 1916. Pyrite was used to produce sulfur at the location, which is now part of Prince William Forest Park (Source: National Park Service).

REF:Deposit:: LONSDALE, J. T., 1927, VA. GEOL. SURVEY BULL. 30, PP. 10, 85-89.
Deposit:: WATSON, T. L., 1907, MINERAL RESOURCES OF VA., PP. 202-204.
Deposit:: MIXON, R B, SOUTHWICK, D L, AND REED, J C, JR, 1972, GEOLOGIC MAP OF THE QUANTICO QUADRANGLE, P
Commodities (Major) - Sulfur - Iron Pyrite; (Trace) - Silver, Gold, Copper, Lead, Zinc
Development Status: Past Producer
Deposit Model: 184: Massive sulfide, kuroko
Host Rock Unit: Clay Residuum, Chopawamsic Formation
Structure: Northeast-Southwest, Columbia-Quantico Syncline
Host Rock: Schist
Tectonic Structure: Piedmont

Select Mineral List Type

Standard Detailed Gallery Strunz Chemical Elements

Commodity List

This is a list of exploitable or exploited mineral commodities recorded at this locality.


Mineral List


16 valid minerals.

Rock Types Recorded

Note: data is currently VERY limited. Please bear with us while we work towards adding this information!

Select Rock List Type

Alphabetical List Tree Diagram

Detailed Mineral List:

ⓘ Actinolite
Formula: ◻Ca2(Mg4.5-2.5Fe0.5-2.5)Si8O22(OH)2
ⓘ 'Biotite'
Formula: K(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
ⓘ Calcite
Formula: CaCO3
ⓘ Chalcopyrite
Formula: CuFeS2
ⓘ 'Chlorite Group'
ⓘ Copiapite
Formula: Fe2+Fe3+4(SO4)6(OH)2 · 20H2O
ⓘ Cuprite
Formula: Cu2O
ⓘ Epidote
Formula: (CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH)
ⓘ Galena
Formula: PbS
ⓘ 'Garnet Group'
Formula: X3Z2(SiO4)3
ⓘ Gypsum
Formula: CaSO4 · 2H2O
ⓘ 'Hornblende Root Name Group'
Formula: ◻Ca2(Z2+4Z3+)(AlSi7O22)(OH,F,Cl)2
ⓘ Magnetite
Formula: Fe2+Fe3+2O4
ⓘ Melanterite
Formula: Fe2+(H2O)6SO4 · H2O
ⓘ Pyrite
Formula: FeS2
ⓘ Pyrrhotite
Formula: Fe1-xS
ⓘ Quartz
Formula: SiO2
ⓘ Schorl
Formula: NaFe2+3Al6(Si6O18)(BO3)3(OH)3(OH)
ⓘ Silver
Formula: Ag
ⓘ Sphalerite
Formula: ZnS
ⓘ 'Tourmaline'
Formula: AD3G6 (T6O18)(BO3)3X3Z

Gallery:

List of minerals arranged by Strunz 10th Edition classification

Group 1 - Elements
ⓘSilver1.AA.05Ag
Group 2 - Sulphides and Sulfosalts
ⓘSphalerite2.CB.05aZnS
ⓘChalcopyrite2.CB.10aCuFeS2
ⓘPyrrhotite2.CC.10Fe1-xS
ⓘGalena2.CD.10PbS
ⓘPyrite2.EB.05aFeS2
Group 4 - Oxides and Hydroxides
ⓘCuprite4.AA.10Cu2O
ⓘMagnetite4.BB.05Fe2+Fe3+2O4
ⓘQuartz4.DA.05SiO2
Group 5 - Nitrates and Carbonates
ⓘCalcite5.AB.05CaCO3
Group 7 - Sulphates, Chromates, Molybdates and Tungstates
ⓘMelanterite7.CB.35Fe2+(H2O)6SO4 · H2O
ⓘGypsum7.CD.40CaSO4 · 2H2O
ⓘCopiapite7.DB.35Fe2+Fe3+4(SO4)6(OH)2 · 20H2O
Group 9 - Silicates
ⓘEpidote9.BG.05a(CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH)
ⓘSchorl9.CK.05NaFe2+3Al6(Si6O18)(BO3)3(OH)3(OH)
ⓘActinolite9.DE.10◻Ca2(Mg4.5-2.5Fe0.5-2.5)Si8O22(OH)2
Unclassified
ⓘ'Biotite'-K(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
ⓘ'Chlorite Group'-
ⓘ'Tourmaline'-AD3G6 (T6O18)(BO3)3X3Z
ⓘ'Hornblende Root Name Group'-◻Ca2(Z2+4Z3+)(AlSi7O22)(OH,F,Cl)2
ⓘ'Garnet Group'-X3Z2(SiO4)3

List of minerals for each chemical element

HHydrogen
Hⓘ Actinolite◻Ca2(Mg4.5-2.5Fe0.5-2.5)Si8O22(OH)2
Hⓘ BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
Hⓘ CopiapiteFe2+Fe43+(SO4)6(OH)2 · 20H2O
Hⓘ Epidote(CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH)
Hⓘ GypsumCaSO4 · 2H2O
Hⓘ MelanteriteFe2+(H2O)6SO4 · H2O
Hⓘ SchorlNaFe32+Al6(Si6O18)(BO3)3(OH)3(OH)
Hⓘ Hornblende Root Name Group◻Ca2(Z42+Z3+)(AlSi7O22)(OH,F,Cl)2
BBoron
Bⓘ SchorlNaFe32+Al6(Si6O18)(BO3)3(OH)3(OH)
Bⓘ TourmalineAD3G6 (T6O18)(BO3)3X3Z
CCarbon
Cⓘ CalciteCaCO3
OOxygen
Oⓘ Actinolite◻Ca2(Mg4.5-2.5Fe0.5-2.5)Si8O22(OH)2
Oⓘ BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
Oⓘ CalciteCaCO3
Oⓘ CopiapiteFe2+Fe43+(SO4)6(OH)2 · 20H2O
Oⓘ CupriteCu2O
Oⓘ Epidote(CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH)
Oⓘ GypsumCaSO4 · 2H2O
Oⓘ MagnetiteFe2+Fe23+O4
Oⓘ MelanteriteFe2+(H2O)6SO4 · H2O
Oⓘ QuartzSiO2
Oⓘ SchorlNaFe32+Al6(Si6O18)(BO3)3(OH)3(OH)
Oⓘ TourmalineAD3G6 (T6O18)(BO3)3X3Z
Oⓘ Hornblende Root Name Group◻Ca2(Z42+Z3+)(AlSi7O22)(OH,F,Cl)2
Oⓘ Garnet GroupX3Z2(SiO4)3
FFluorine
Fⓘ BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
Fⓘ Hornblende Root Name Group◻Ca2(Z42+Z3+)(AlSi7O22)(OH,F,Cl)2
NaSodium
Naⓘ SchorlNaFe32+Al6(Si6O18)(BO3)3(OH)3(OH)
MgMagnesium
Mgⓘ Actinolite◻Ca2(Mg4.5-2.5Fe0.5-2.5)Si8O22(OH)2
Mgⓘ BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
AlAluminium
Alⓘ BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
Alⓘ Epidote(CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH)
Alⓘ SchorlNaFe32+Al6(Si6O18)(BO3)3(OH)3(OH)
Alⓘ Hornblende Root Name Group◻Ca2(Z42+Z3+)(AlSi7O22)(OH,F,Cl)2
SiSilicon
Siⓘ Actinolite◻Ca2(Mg4.5-2.5Fe0.5-2.5)Si8O22(OH)2
Siⓘ BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
Siⓘ Epidote(CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH)
Siⓘ QuartzSiO2
Siⓘ SchorlNaFe32+Al6(Si6O18)(BO3)3(OH)3(OH)
Siⓘ Hornblende Root Name Group◻Ca2(Z42+Z3+)(AlSi7O22)(OH,F,Cl)2
Siⓘ Garnet GroupX3Z2(SiO4)3
SSulfur
Sⓘ ChalcopyriteCuFeS2
Sⓘ CopiapiteFe2+Fe43+(SO4)6(OH)2 · 20H2O
Sⓘ GalenaPbS
Sⓘ GypsumCaSO4 · 2H2O
Sⓘ MelanteriteFe2+(H2O)6SO4 · H2O
Sⓘ PyriteFeS2
Sⓘ PyrrhotiteFe1-xS
Sⓘ SphaleriteZnS
ClChlorine
Clⓘ Hornblende Root Name Group◻Ca2(Z42+Z3+)(AlSi7O22)(OH,F,Cl)2
KPotassium
Kⓘ BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
CaCalcium
Caⓘ Actinolite◻Ca2(Mg4.5-2.5Fe0.5-2.5)Si8O22(OH)2
Caⓘ CalciteCaCO3
Caⓘ Epidote(CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH)
Caⓘ GypsumCaSO4 · 2H2O
Caⓘ Hornblende Root Name Group◻Ca2(Z42+Z3+)(AlSi7O22)(OH,F,Cl)2
TiTitanium
Tiⓘ BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
FeIron
Feⓘ Actinolite◻Ca2(Mg4.5-2.5Fe0.5-2.5)Si8O22(OH)2
Feⓘ BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
Feⓘ ChalcopyriteCuFeS2
Feⓘ CopiapiteFe2+Fe43+(SO4)6(OH)2 · 20H2O
Feⓘ Epidote(CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH)
Feⓘ MagnetiteFe2+Fe23+O4
Feⓘ MelanteriteFe2+(H2O)6SO4 · H2O
Feⓘ PyriteFeS2
Feⓘ PyrrhotiteFe1-xS
Feⓘ SchorlNaFe32+Al6(Si6O18)(BO3)3(OH)3(OH)
CuCopper
Cuⓘ ChalcopyriteCuFeS2
Cuⓘ CupriteCu2O
ZnZinc
Znⓘ SphaleriteZnS
AgSilver
Agⓘ SilverAg
PbLead
Pbⓘ GalenaPbS

Other Regions, Features and Areas containing this locality

North America PlateTectonic Plate

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.
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