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:
Gold-Pyrite Belt, Prince William Co., Virginia, USA

Oldest recorded age at locality: 500
Youngest recorded age at locality: 500

mindat Locality ID: 105414
mindat URL: http://www.mindat.org/loc-105414.html

Tectonic Settings:

Total number of sublocalities beneath "Gold-Pyrite Belt, Prince William Co., Virginia, USA": 6
Total number of bottom-level sublocalities: 5

Number of Child Localities: 5
Child Localities:
Agnewville Prospect
Crawford Placers Prospect (Neabsco Creek Prospect)
Dumfries
Greenwood Prospect (Laird Mine)
Joplin Prospect

Latitude: 38°36'28"N
Longitude: 77°21'6"W
Decimal Degree (lat, lon): 38.607777777778,-77.351666666667

A	This mineral is Anthropogenic.
G	This mineral is directly dated.
B	This mineral is reported as having this age.
Y	This mineral is using an age reported as an element mineralization period.
O	This mineral is using an age calculated from all data at the locality.
R	The age displayed for this mineral originates from a different, non-child locality.
P	The 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.

Amphibole	Arsenopyrite	Calcite	Chalcopyrite	Clinozoisite	Copiapite	Copper	Diaspore	Epidote	Gypsum
Melanterite	Nickeline	None	Not in a structural group	Pyrite	Quartz	Rocksalt	Sphalerite	Spinel	Tourmaline

Actinolite ()*	Arsenopyrite ()*	Calcite ()*	Chalcopyrite ()*	Copiapite ()*
Cuprite ()*	Epidote ()*	Galena ()*	Goethite ()*	Gold ()*
Graphite ()*	Gypsum ()*	Magnetite ()*	Melanterite ()*	Pyrite ()*
Pyrrhotite ()*	Quartz ()*	Schorl ()*	Silver ()*	Sphalerite ()*

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: Ag Al As Au B C Ca Cu Fe H Mg Na O Pb S Si Zn

Elements from minerals reported directly at this locality:

Structural Groups for minerals in this locality:
Amphibole Arsenopyrite Calcite Chalcopyrite Clinozoisite Copiapite Copper Diaspore Epidote Gypsum
Melanterite Nickeline None Not in a structural group Pyrite Quartz Rocksalt Sphalerite Spinel Tourmaline

20 IMA Minerals at location:

Mineral name	Structural Groups	IMA Formula	Max Age (Ma)	Min Age (Ma)	# of Sublocalities containing mineral	LOCALITY IDs, not mindat ids	# of localities containing mineral
Actinolite ()*	Amphibole	Ca₂(Mg_4.5-2.5Fe²⁺_0.5-2.5)Si₈O₂₂(OH)₂			1	282328	3419
Arsenopyrite ()*	Arsenopyrite	FeAsS			1	282325	9052
Calcite ()*	Calcite	Ca(CO₃)			1	282328	27770
Chalcopyrite ()*	Chalcopyrite	CuFeS₂			1	282328	27198
Copiapite ()*	Copiapite	Fe²⁺Fe³⁺₄(SO₄)₆(OH)₂·20H₂O			1	282328	382
Cuprite ()*	Not in a structural group	Cu₂O			1	282328	2970
Epidote ()*	Epidote Clinozoisite	Ca₂(Al₂Fe³⁺)[Si₂O₇][SiO₄]O(OH)			1	282328	8173
Galena ()*	Rocksalt	PbS			1	282328	24243
Goethite ()*	Diaspore	FeO(OH)			1	282325	7437
Gold ()*	Copper	Au	500	500	2	282326,282329	30554
Graphite ()*	None	C			1	282325	2812
Gypsum ()*	Gypsum	Ca(SO₄)·2H₂O			1	282328	6890
Magnetite ()*	Spinel	Fe²⁺Fe³⁺₂O₄			1	282328	14899
Melanterite ()*	Melanterite	Fe(SO₄)·7H₂O			1	282328	915
Pyrite ()*	Pyrite	FeS₂	500	500	4	282325,282326,282328,282330	39462
Pyrrhotite ()*	Nickeline	Fe₇S₈			1	282328	9056
Quartz ()*	Quartz	SiO₂	500	500	2	282326,282328	61156
Schorl ()*	Tourmaline	NaFe²⁺₃Al₆(Si₆O₁₈)(BO₃)₃(OH)₃(OH)			1	282328	2705
Silver ()*	Copper	Ag			1	282328	5186
Sphalerite ()*	Sphalerite	ZnS			1	282328	21482

1 Ages assigned to this locality:

	Excel ID	Max Age (Ma)	Min Age (Ma)	Age as listed in reference	Dating Method	Age Interpret	Prioritized?	Sample Source	Sample Num	Run Num	Age from other Locality	Dated Mineral	Minerals explicitely stated as having this age	Age applies to these Elements	MinDat Locality ID	Dated Locality (Max Age)	Location as listed in reference	Reference	Reference DOI	Reference ID	Age Notes
	USGS-Rb-Sr-06533	500	500	50	Rb-Sr			whole rock							104526	Crawford Placers Prospect (Neabsco Creek Prospect), Gold-Pyrite Belt, Prince William Co., Virginia, USA		USGS-Rb-Sr		USGS-Rb-Sr

Sample	Source Locality	Reference URL

All locality data graciously provided by mindat.org

All age data...