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:
Arlington Co., Virginia, USA


mindat Locality ID: 106795
mindat URL: http://www.mindat.org/loc-106795.html

Tectonic Settings:

Total number of sublocalities beneath "Arlington Co., Virginia, USA": 11
Total number of bottom-level sublocalities: 11

Number of Child Localities: 11
Child Localities:
Chain Bridge
Fourmile Run
Fourmile Run (2)
George Washington Parkway Roadcut
Long Branch
Old Dominion Railway Cut
Pimmit Run
Potomac River
Spout Run
Stratford Junior High School
Windy Run

Latitude: 0°0'0"N
Longitude: 0°0'0"E
Decimal Degree (lat, lon): 0,0
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 Au B Ca Fe H K Mg Mn Mo Na O Pb S Si 

Elements from minerals reported directly at this locality: 

Structural Groups for minerals in this locality: 
AmphiboleClayCopperFeldsparGarnetMarcasiteMolybdeniteNonePyriteQuartz
RocksaltSmectite-vermiculiteTalcTourmaline

12 IMA Minerals at location:
Actinolite  (*)Galena  (*)Gold  (*)Marcasite  (*)Molybdenite  (*)
Orthoclase  (*)Pyrite  (*)Quartz  (*)Schorl  (*)Spessartine  (*)
Talc  (*)Vermiculite  (*)
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)212797223419
Galena  (*)RocksaltPbS127972624243
Gold  (*)CopperAu127972730554
Marcasite  (*)MarcasiteFeS212797235674
Molybdenite  (*)MolybdeniteMoS212797315800
Orthoclase  (*)FeldsparK(AlSi3O8)12797212349
Pyrite  (*)PyriteFeS2127972439462
Quartz  (*)QuartzSiO24279721,279725,279729,27973061156
Schorl  (*)TourmalineNaFe2+3Al6(Si6O18)(BO3)3(OH)3(OH)12797312705
Spessartine  (*)GarnetMn2+3Al2(SiO4)312797251214
Talc  (*)Clay TalcMg3Si4O10(OH)212797223337
Vermiculite  (*)Clay Smectite-vermiculiteMg0.7(Mg,Fe,Al)6(Si,Al)8O20(OH)4·8H2O1279728652


No ages have been assigned to this locality yet.
SampleSource LocalityReference URL

All locality data graciously provided by mindat.org

All age data...

Other copyright data...