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:
Willard Mine, Willard District, Humboldt Range, Pershing Co., Nevada, USA

Oldest recorded age at locality: 6.4
Youngest recorded age at locality: 5.8

mindat Locality ID: 6916
mindat URL: http://www.mindat.org/loc-6916.html

Tectonic Settings:

Total number of sublocalities beneath "Willard Mine, Willard District, Humboldt Range, Pershing Co., Nevada, USA": 0
Total number of bottom-level sublocalities: 0

Latitude: 40°15'28"N
Longitude: 118°20'40"W
Decimal Degree (lat, lon): 40.257777777778,-118.34444444444

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.

Alunite	Apatite	Aragonite	Baryte	Brochantite	Calcioferrite	Calcite	Clay	Diaspore	Dufrénite
Gypsum	Kaolinite	None	Pharmacosiderite	Phosphofibrite	Phosphosiderite	Pyrite	Quartz	Rocksalt	Rutile
Sphalerite	Sulphur	Wavellite

Anglesite ()*	Baryte ()*	Brochantite ()*	Cacoxenite ()*	Calcite ()*
Cerussite ()*	Crandallite ()*	Dufrénite ()*	Fluellite ()*	Fluorwavellite ()*
Galena ()*	Goethite ()*	Gypsum ()*	Jarosite ()*	Kaolinite ()*
Metavariscite ()*	Meurigite-K ()*	Mimetite ()*	Minyulite ()*	Montgomeryite ()*
Pharmacosiderite ()*	Pyrite ()*	Pyrolusite ()*	Quartz ()*	Selenium ()*
Sphalerite ()*	Strengite ()*	Variscite ()*

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 As Ba C Ca Cl Cu F Fe H K Mg Mn O P Pb S Se Si Zn

Elements from minerals reported directly at this locality: Al As Ba C Ca Cl Cu F Fe H K Mg Mn O P Pb S Se Si Zn

Structural Groups for minerals in this locality:
Alunite Apatite Aragonite Baryte Brochantite Calcioferrite Calcite Clay Diaspore Dufrénite
Gypsum Kaolinite None Pharmacosiderite Phosphofibrite Phosphosiderite Pyrite Quartz Rocksalt Rutile
Sphalerite Sulphur Wavellite

28 IMA Minerals at location:

Mineral name	Structural Groups	IMA Formula	Max Age (Ma)	Min Age (Ma)	# of localities containing mineral
Anglesite ()*	Baryte	Pb(SO₄)	6.4	5.8	2734
Baryte ()*	Baryte	Ba(SO₄)	6.4	5.8	11547
Brochantite ()*	Brochantite	Cu₄(SO₄)(OH)₆	6.4	5.8	1633
Cacoxenite ()*	None	Fe³⁺₂₄AlO₆(PO₄)₁₇(OH)₁₂·75H₂O	6.4	5.8	280
Calcite ()*	Calcite	Ca(CO₃)	6.4	5.8	27770
Cerussite ()*	Aragonite	Pb(CO₃)	6.4	5.8	4979
Crandallite ()*	Alunite	CaAl₃(PO₄)(PO₃OH)(OH)₆	6.4	5.8	310
Dufrénite ()*	Dufrénite	Ca_0.5Fe²⁺Fe³⁺₅(PO₄)₄(OH)₆·2H₂O	6.4	5.8	139
Fluellite ()*	None	Al₂(PO₄)F₂(OH)·7H₂O	6.4	5.8	40
Fluorwavellite ()*	Wavellite	Al₃(PO₄)₂(OH)₂F·5H₂O	6.4	5.8	26
Galena ()*	Rocksalt	PbS	6.4	5.8	24243
Goethite ()*	Diaspore	FeO(OH)	6.4	5.8	7437
Gypsum ()*	Gypsum	Ca(SO₄)·2H₂O	6.4	5.8	6890
Jarosite ()*	Alunite	KFe³⁺₃(SO₄)₂(OH)₆	6.4	5.8	2228
Kaolinite ()*	Clay Kaolinite	Al₂Si₂O₅(OH)₄	6.4	5.8	5591
Metavariscite ()*	Phosphosiderite	Al(PO₄)·2H₂O	6.4	5.8	27
Meurigite-K ()*	Phosphofibrite	KFe³⁺₈(PO₄)₆(OH)₇·6.5H₂O	6.4	5.8	21
Mimetite ()*	Apatite	Pb₅(AsO₄)₃Cl	6.4	5.8	1107
Minyulite ()*	None	KAl₂(PO₄)₂F·4H₂O	6.4	5.8	31
Montgomeryite ()*	Calcioferrite	Ca₄MgAl₄(PO₄)₆(OH)₄·12H₂O	6.4	5.8	44
Pharmacosiderite ()*	Pharmacosiderite	KFe³⁺₄(AsO₄)₃(OH)₄·6-7H₂O	6.4	5.8	428
Pyrite ()*	Pyrite	FeS₂	6.4	5.8	39462
Pyrolusite ()*	Rutile	MnO₂	6.4	5.8	3106
Quartz ()*	Quartz	SiO₂	6.4	5.8	61156
Selenium ()*	Sulphur	Se	6.4	5.8	143
Sphalerite ()*	Sphalerite	ZnS	6.4	5.8	21482
Strengite ()*	None	Fe³⁺(PO₄)·2H₂O	6.4	5.8	263
Variscite ()*	None	Al(PO₄)·2H₂O	6.4	5.8	301

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
	Hg-00093	6.4	5.8		K-Ar						Yes		Cinnabar, Mercury, Mosesite	Hg	37183	Willard District, Humboldt Range, Pershing Co., Nevada, USA		Noble et al. (1988); Coolbaugh et al. (2005)

Sample	Source Locality	Reference URL

All locality data graciously provided by mindat.org

All age data...