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:
Kirwin Mining District (Kerwin Mining District), Park Co., Wyoming, USA

Oldest recorded age at locality: 40
Youngest recorded age at locality: 40

mindat Locality ID: 7313
mindat URL: http://www.mindat.org/loc-7313.html

Tectonic Settings:

Total number of sublocalities beneath "Kirwin Mining District (Kerwin Mining District), Park Co., Wyoming, USA": 4
Total number of bottom-level sublocalities: 4

Number of Child Localities: 4
Child Localities:
Bryan Prospect
Oregon Prospect
Pickwick Prospect
Tumalum Prospect

Latitude: 43°52'0"N
Longitude: 109°17'44"W
Decimal Degree (lat, lon): 43.866666666667,-109.29555555556

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.

Baryte	Calcite	Chalcopyrite	Copper	Corundum	Malachite	Molybdenite	None	Not in a structural group	Pyrite
Quartz	Rocksalt	Sphalerite	Tetradymite	Tetrahedrite

Anglesite ()*	Azurite ()*	Baryte ()*	Calcite ()*	Chalcocite ()*
Chalcopyrite ()*	Copper ()*	Cuprite ()*	Galena ()*	Gold ()*
Hematite ()*	Malachite ()*	Molybdenite ()*	Molybdite ()*	Proustite ()*
Pyrite ()*	Quartz ()*	Siderite ()*	Sphalerite ()*	Stephanite ()*
Tetradymite ()*	Tetrahedrite-(Zn) ()*

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 As Au Ba Bi C Ca Cu Fe H Mo O Pb S Sb Si Te Zn

Elements from minerals reported directly at this locality: Ag Au Ba C Ca Cu Fe H Mo O Pb S Sb

Structural Groups for minerals in this locality:
Baryte Calcite Chalcopyrite Copper Corundum Malachite Molybdenite None Not in a structural group Pyrite
Quartz Rocksalt Sphalerite Tetradymite Tetrahedrite

22 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
Anglesite ()*	Baryte	Pb(SO₄)	40	40	0		2734
Azurite ()*	Not in a structural group	Cu₃(CO₃)₂(OH)₂	40	40	0		5509
Baryte ()*	Baryte	Ba(SO₄)	40	40	0		11547
Calcite ()*	Calcite	Ca(CO₃)	40	40	0		27770
Chalcocite ()*	None	Cu₂S	40	40	0		5707
Chalcopyrite ()*	Chalcopyrite	CuFeS₂	40	40	3	293523,293524,293526	27198
Copper ()*	Copper	Cu	40	40	0		3846
Cuprite ()*	Not in a structural group	Cu₂O	40	40	0		2970
Galena ()*	Rocksalt	PbS	40	40	3	293523,293524,293526	24243
Gold ()*	Copper	Au	40	40	0		30554
Hematite ()*	Corundum	Fe₂O₃	40	40	0		14640
Malachite ()*	Malachite	Cu₂(CO₃)(OH)₂	40	40	0		12537
Molybdenite ()*	Molybdenite	MoS₂	40	40	1	293523	5800
Molybdite ()*	None	MoO₃	40	40	0		140
Proustite ()*	None	Ag₃AsS₃	40	40	1	293525	733
Pyrite ()*	Pyrite	FeS₂	40	40	4	293523,293524,293525,293526	39462
Quartz ()*	Quartz	SiO₂	40	40	1	293524	61156
Siderite ()*	Calcite	Fe(CO₃)	40	40	1	293524	6417
Sphalerite ()*	Sphalerite	ZnS	40	40	3	293523,293524,293526	21482
Stephanite ()*	None	Ag₅SbS₄	40	40	0		586
Tetradymite ()*	Tetradymite	Bi₂Te₂S	40	40	1	293524	510
Tetrahedrite-(Zn) ()*	Tetrahedrite	Cu₆(Cu₄Zn₂)Sb₄S₁₃	40	40	1	293526	5317

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
	PorphCu-00021	40	40	40									Anglesite, Chalcopyrite, Copper, Covellite, Cuprite, Epidote, Galena, Gold, Magnetite, Molybdenite, Montmorillonite, Opal, Pyrite, Stephanite	Cu	7313	Kirwin Mining District (Kerwin Mining District), Park Co., Wyoming, USA	Kirwin	Singer et al. (2008)		USGSOFR2008_1155

Sample	Source Locality	Reference URL

All locality data graciously provided by mindat.org

All age data...