Mineral Evolution Database
Created and maintained by the Mineral Evolution Project in partnership with RRUFF and mindat.
Mineral locality data provided by mindat.org



The Mineral Evolution database is currently under development.

The goal of this page is to present localities at which the mineral is found, and estimates of the oldest possible geologic age of the minerals at these localities.


Locality Name:
Leesburg, Loudoun Co., Virginia, USA


mindat Locality ID: 23736
mindat URL: http://www.mindat.org/loc-23736.html

Tectonic Settings:

Total number of sublocalities beneath "Leesburg, Loudoun Co., Virginia, USA": 9
Total number of bottom-level sublocalities: 9

Number of Child Localities: 9
Child Localities:
Eagle Mine
Goose Creek
Leesburg Quarry
New Goose Creek Quarry (Luck Company Quarry)
Old Goose Creek Quarry (Arlington Stone Company Quarry; Belmont Quarry)
Potomac Mine
Quarry (MRDS - 10227917)
State Quarry
White Quarry

Latitude: 39°5'19"N
Longitude: 77°32'15"W
Decimal Degree (lat, lon): 39.088611111111,-77.5375
AThis mineral is Anthropogenic.
GThis mineral is directly dated.
BThis mineral is reported as having this age.
YThis mineral is using an age reported as an element mineralization period.
OThis mineral is using an age calculated from all data at the locality.
RThe age displayed for this mineral originates from a different, non-child locality.
PThe age displayed for this mineral is the range of ages for this mineral at all of this locality's children.
This mineral's age has not yet been recorded.

This Mineral list contains entries from this locality, including sub-localities. Minerals in bold are reported by mindat.org as occurring directly at this locality, and do not occur at any children (sublocalities) of this locality.

Elements at this locality, including sub-localities: Al B Ba C Ca Cr Cu F Fe H K Mg Na O P Pb S Si Ti Y Zn Zr 

Elements from minerals reported directly at this locality: C Ca Cu H O P S Y 

Structural Groups for minerals in this locality: 
AmorphousAmphiboleApatiteApophylliteBaryteCalciteChalcopyriteChloriteClayClinozoisite
CorundumEpidoteEttringiteFeldsparGadoliniteHarmotomeMalachiteMordeniteNatroliteNone
Not in a structural groupPrehnitePyritePyroxeneQuartzRhodoniteRocksaltSphaleriteSpinelTalc
ThomsoniteTitaniteVesuvianiteWollastoniteWurtziteZircon

48 IMA Minerals at location:
Actinolite  (*)Albite  (*)Anhydrite  (*)Augite  (*)Azurite  (*)
Babingtonite  (*)Baryte  (*)Bornite  (*)Calcite  (*)Chalcocite  (*)
Chalcopyrite  (*)Chromite  (*)Clinochlore  (*)Clinozoisite  (*)Datolite  (*)
Diopside  (*)Epidote  (*)Epistilbite  (*)Fluorapatite  (*)Galena  (*)
Goosecreekite  (*)Harmotome  (*)Hematite  (*)Hydroxyapophyllite-(K)  (*)Kainosite-(Y)  (*)
Laumontite  (*)Loudounite  (*)Magnetite  (*)Malachite  (*)Mordenite  (*)
Natrolite  (*)Opal  (*)Pigeonite  (*)Prehnite  (*)Pseudomalachite  (*)
Pyrite  (*)Quartz  (*)Sphalerite  (*)Talc  (*)Thaumasite  (*)
Thomsonite-Ca  (*)Titanite  (*)Vesuvianite  (*)Wollastonite  (*)Wurtzite  (*)
Xenotime-(Y)  (*)Xonotlite  (*)Zircon  (*)
Mineral nameStructural GroupsIMA FormulaMax Age (Ma)Min Age (Ma)# of Sublocalities containing mineralLOCALITY IDs, not mindat ids# of localities containing mineral
Actinolite  (*)Amphibole   Ca2(Mg4.5-2.5Fe2+0.5-2.5)Si8O22(OH)22281700,2817023419
Albite  (*)FeldsparNa(AlSi3O8)2281700,2817018803
Anhydrite  (*)Not in a structural groupCa(SO4)01588
Augite  (*)Pyroxene(Ca,Mg,Fe)2Si2O62281700,2817012060
Azurite  (*)Not in a structural groupCu3(CO3)2(OH)205509
Babingtonite  (*)RhodoniteCa2Fe2+Fe3+Si5O14(OH)2281700,281701161
Baryte  (*)BaryteBa(SO4)2281699,28170511547
Bornite  (*)NoneCu5FeS412817025516
Calcite  (*)CalciteCa(CO3)4281699,281700,281701,28170527770
Chalcocite  (*)NoneCu2S12817045707
Chalcopyrite  (*)ChalcopyriteCuFeS2128170027198
Chromite  (*)SpinelFe2+Cr2O412817023902
Clinochlore  (*)Chlorite ClayMg5Al(AlSi3O10)(OH)83281699,281701,2817051756
Clinozoisite  (*)Clinozoisite EpidoteCa2Al3[Si2O7][SiO4]O(OH)12817011025
Datolite  (*)GadoliniteCaB(SiO4)(OH)4281699,281700,281701,281705498
Diopside  (*)PyroxeneCaMgSi2O62281700,2817014135
Epidote  (*)Epidote ClinozoisiteCa2(Al2Fe3+)[Si2O7][SiO4]O(OH)4281700,281701,281702,2817048173
Epistilbite  (*)MordeniteCa3[Si18Al6O48]·16H2O1281701138
Fluorapatite  (*)ApatiteCa5(PO4)3F12817002740
Galena  (*)RocksaltPbS128170024243
Goosecreekite  (*)NoneCa(Si6Al2)O16·5H2O128170013
Harmotome  (*)HarmotomeBa2(Si12Al4)O32·12H2O1281701290
Hematite  (*)CorundumFe2O32281697,28170214640
Hydroxyapophyllite-(K)  (*)ApophylliteKCa4Si8O20(OH,F)·8H2O3281699,281700,28170185
Kainosite-(Y)  (*)NoneCa2Y2(SiO3)4(CO3)·H2O128170099
Laumontite  (*)Not in a structural groupCaAl2Si4O12·4H2O3281700,281701,2817041271
Loudounite  (*)NoneNaCa5Zr4Si16O40(OH)11·8H2O12817002
Magnetite  (*)SpinelFe2+Fe3+2O4128170114899
Malachite  (*)MalachiteCu2(CO3)(OH)23281700,281702,28170412537
Mordenite  (*)Mordenite(Na2,Ca,K2)4(Al8Si40)O96·28H2O1281700405
Natrolite  (*)NatroliteNa2(Si3Al2)O10·2H2O2281700,2817011236
Opal  (*)AmorphousSiO2·nH2O12817012994
Pigeonite  (*)Pyroxene(Mg,Fe,Ca)2Si2O61281701303
Prehnite  (*)PrehniteCa2Al(Si3Al)O10(OH)212817001898
Pseudomalachite  (*)NoneCu5(PO4)2(OH)40369
Pyrite  (*)PyriteFeS2128170239462
Quartz  (*)QuartzSiO23281700,281701,28170261156
Sphalerite  (*)SphaleriteZnS2281700,28170121482
Talc  (*)Clay TalcMg3Si4O10(OH)212817023337
Thaumasite  (*)EttringiteCa3Si(OH)6(CO3)(SO4)·12H2O1281701183
Thomsonite-Ca  (*)ThomsoniteNaCa2(Al5Si5)O20·6H2O1281700452
Titanite  (*)TitaniteCaTi(SiO4)O2281700,2817014899
Vesuvianite  (*)Vesuvianite(Ca,Na)19(Al,Mg,Fe)13(SiO4)10(Si2O7)4(OH,F,O)103281698,281699,2817051395
Wollastonite  (*)WollastoniteCaSiO33281698,281699,2817051247
Wurtzite  (*)WurtziteZnS1281701372
Xenotime-(Y)  (*)ZirconY(PO4)0939
Xonotlite  (*)NoneCa6Si6O17(OH)22281699,281705109
Zircon  (*)ZirconZr(SiO4)12817005251


No ages have been assigned to this locality yet.
SampleSource LocalityReference URL
R070231Old Goose Creek Quarry (Arlington Stone Company Quarry; Belmont Quarry), Leesburg, Loudoun Co., Virginia, USAhttps://rruff.info/R070231

All locality data graciously provided by mindat.org

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