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:
Chantilly, Loudoun Co., Virginia, USA


mindat Locality ID: 255229
mindat URL: http://www.mindat.org/loc-255229.html

Tectonic Settings:

Total number of sublocalities beneath "Chantilly, Loudoun Co., Virginia, USA": 1
Total number of bottom-level sublocalities: 1

Number of Child Localities: 1
Child Localities:
Chantilly Quarry

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 Bi Ca Cu F Fe H K Mg Na O Pb S Si 

Elements from minerals reported directly at this locality: 

Structural Groups for minerals in this locality: 
ApophylliteBerylClinozoisiteCorundumEpidoteGyroliteMeneghiniteNoneNot in a structural groupPrehnite
PyroxeneRhodonite

10 IMA Minerals at location:
Aikinite  (*)Augite  (*)Babingtonite  (*)Clinozoisite  (*)Cordierite  (*)
Gyrolite  (*)Hematite  (*)Hydroxyapophyllite-(K)  (*)Laumontite  (*)Prehnite  (*)
Mineral nameStructural GroupsIMA FormulaMax Age (Ma)Min Age (Ma)# of Sublocalities containing mineralLOCALITY IDs, not mindat ids# of localities containing mineral
Aikinite  (*)MeneghiniteCuPbBiS31281677315
Augite  (*)Pyroxene(Ca,Mg,Fe)2Si2O612816772060
Babingtonite  (*)RhodoniteCa2Fe2+Fe3+Si5O14(OH)1281677161
Clinozoisite  (*)Clinozoisite EpidoteCa2Al3[Si2O7][SiO4]O(OH)12816771025
Cordierite  (*)BerylMg2Al4Si5O1812816771008
Gyrolite  (*)GyroliteNaCa16(Si23Al)O60(OH)8·14H2O1281677142
Hematite  (*)CorundumFe2O3128167714640
Hydroxyapophyllite-(K)  (*)ApophylliteKCa4Si8O20(OH,F)·8H2O128167785
Laumontite  (*)Not in a structural groupCaAl2Si4O12·4H2O12816771271
Prehnite  (*)PrehniteCa2Al(Si3Al)O10(OH)212816771898



No ages have been assigned to this locality yet.

SampleSource LocalityReference URL


All locality data graciously provided by mindat.org

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