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:
Opalite District, Humboldt Co., Nevada, USA

Oldest recorded age at locality: 16.1
Youngest recorded age at locality: 15.3

mindat Locality ID: 29171
mindat URL: http://www.mindat.org/loc-29171.html

Tectonic Settings:

Total number of sublocalities beneath "Opalite District, Humboldt Co., Nevada, USA": 6
Total number of bottom-level sublocalities: 5

Number of Child Localities: 4
Child Localities:
Bretz Mine
McDermitt Caldera
McDermitt Mine
Opalite Mine

Latitude: 41°55'53"N
Longitude: 117°56'9"W
Decimal Degree (lat, lon): 41.931388888889,-117.93583333333

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	Amorphous	Amphibole	Baryte	Calcite	Clay	Copiapite	Corundum	Cristobalite	Diaspore
Feldspar	Fluorite	Gypsum	Kaolinite	Marcasite	Melanterite	None	Not in a structural group	Pyrite	Pyrochlore
Pyroxene	Quartz	Rutile	Smectite-vermiculite	Stibnite	Tridymite

Alunite ()*	Augite ()*	Baryte ()*	Buddingtonite ()*	Calcite ()*
Calomel ()*	Chapmanite ()*	Cinnabar ()*	Copiapite ()*	Corderoite ()*
Cristobalite ()*	Eglestonite ()*	Fibroferrite ()*	Fluorite ()*	Getchellite ()*
Goethite ()*	Gypsum ()*	Hedenbergite ()*	Hematite ()*	Jarosite ()*
Kaolinite ()*	Kenhsuite ()*	Kleinite ()*	Lithiophorite ()*	Marcasite ()*
Melanterite ()*	Mercury ()*	Montmorillonite ()*	Montroydite ()*	Opal ()*
Pigeonite ()*	Pyrite ()*	Quartz ()*	Radtkeite ()*	Realgar ()*
Riebeckite ()*	Schuetteite ()*	Stibiconite ()*	Stibnite ()*	Terlinguacreekite ()*
Terlinguaite ()*	Tridymite ()*	Tripuhyite ()*	Uraninite ()*

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 F Fe H Hg I K Li Mg Mn N Na O S Sb Si U

Elements from minerals reported directly at this locality: As Ca Fe Mg O S Sb Si U

Structural Groups for minerals in this locality:
Alunite Amorphous Amphibole Baryte Calcite Clay Copiapite Corundum Cristobalite Diaspore
Feldspar Fluorite Gypsum Kaolinite Marcasite Melanterite None Not in a structural group Pyrite Pyrochlore
Pyroxene Quartz Rutile Smectite-vermiculite Stibnite Tridymite

44 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
Alunite ()*	None	KAl₃(SO₄)₂(OH)₆	16.1	15.3	1	237413	966
Augite ()*	Pyroxene	(Ca,Mg,Fe)₂Si₂O₆	16.1	15.3	0		2060
Baryte ()*	Baryte	Ba(SO₄)	16.1	15.3	1	237413	11547
Buddingtonite ()*	Feldspar	(NH₄)(AlSi₃)O₈	16.1	15.3	1	237413	27
Calcite ()*	Calcite	Ca(CO₃)	16.1	15.3	1	237413	27770
Calomel ()*	None	HgCl	16.1	15.3	1	237413	91
Chapmanite ()*	None	Fe³⁺₂Sb³⁺(Si₂O₅)O₃(OH)	16.1	15.3	1	237413	31
Cinnabar ()*	None	HgS	16.1	15.3	1	237413	2600
Copiapite ()*	Copiapite	Fe²⁺Fe³⁺₄(SO₄)₆(OH)₂·20H₂O	16.1	15.3	1	237413	382
Corderoite ()*	None	Hg₃S₂Cl₂	16.1	15.3	1	237413	16
Cristobalite ()*	Cristobalite	SiO₂	16.1	15.3	1	237413	453
Eglestonite ()*	None	([Hg¹⁺]₂)₃OCl₃(OH)	16.1	15.3	1	237413	36
Fibroferrite ()*	Not in a structural group	Fe³⁺(SO₄)(OH)·5H₂O	16.1	15.3	1	237413	107
Fluorite ()*	Fluorite	CaF₂	16.1	15.3	1	237413	9617
Getchellite ()*	None	SbAsS₃	16.1	15.3	0		19
Goethite ()*	Diaspore	FeO(OH)	16.1	15.3	1	237413	7437
Gypsum ()*	Gypsum	Ca(SO₄)·2H₂O	16.1	15.3	1	237413	6890
Hedenbergite ()*	Pyroxene	CaFe²⁺Si₂O₆			1	237412	741
Hematite ()*	Corundum	Fe₂O₃	16.1	15.3	1	237413	14640
Jarosite ()*	Alunite	KFe³⁺₃(SO₄)₂(OH)₆	16.1	15.3	1	237413	2228
Kaolinite ()*	Clay Kaolinite	Al₂Si₂O₅(OH)₄	16.1	15.3	1	237413	5591
Kenhsuite ()*	None	Hg₃S₂Cl₂	16.1	15.3	1	237413	3
Kleinite ()*	None	(Hg₂N)(Cl,SO₄)·nH₂O	16.1	15.3	1	237413	3
Lithiophorite ()*	None	(Al,Li)(Mn⁴⁺,Mn³⁺)O₂(OH)₂	16.1	15.3	1	237413	210
Marcasite ()*	Marcasite	FeS₂	16.1	15.3	1	237413	5674
Melanterite ()*	Melanterite	Fe(SO₄)·7H₂O	16.1	15.3	1	237413	915
Mercury ()*	None	Hg	16.1	15.3	1	237413	397
Montmorillonite ()*	Clay Smectite-vermiculite	(Na,Ca)_0.3(Al,Mg)₂Si₄O₁₀(OH)₂·nH₂O	16.1	15.3	1	237413	1508
Montroydite ()*	None	HgO	16.1	15.3	1	237413	29
Opal ()*	Amorphous	SiO₂·nH₂O	16.1	15.3	1	237413	2994
Pigeonite ()*	Pyroxene	(Mg,Fe,Ca)₂Si₂O₆	16.1	15.3	0		303
Pyrite ()*	Pyrite	FeS₂	16.1	15.3	1	237413	39462
Quartz ()*	Quartz	SiO₂	16.1	15.3	1	237413	61156
Radtkeite ()*	None	Hg₃S₂ClI	16.1	15.3	1	237413	1
Realgar ()*	None	AsS	16.1	15.3	1	237413	712
Riebeckite ()*	Amphibole	Na₂(Fe²⁺₃Fe³⁺₂)Si₈O₂₂(OH)₂			1	237411	375
Schuetteite ()*	None	Hg₃O₂(SO₄)	0	0	1	237413	21
Stibiconite ()*	Pyrochlore	Sb³⁺Sb⁵⁺₂O₆(OH)	16.1	15.3	1	237413	446
Stibnite ()*	Stibnite	Sb₂S₃	16.1	15.3	1	237413	3418
Terlinguacreekite ()*	None	Hg²⁺₃O₂Cl₂	16.1	15.3	1	237413	2
Terlinguaite ()*	None	Hg₂OCl	16.1	15.3	1	237413	22
Tridymite ()*	Tridymite	SiO₂	16.1	15.3	1	237413	458
Tripuhyite ()*	Rutile	Fe³⁺Sb⁵⁺O₄	16.1	15.3	1	237413	66
Uraninite ()*	Fluorite	UO₂	16.1	15.3	0		2718

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-00041	16.1	15.3		K-Ar								Calomel, Cinnabar, Corderoite, Kenhsuite, Kleinite, Mercury, Montroydite, Radtkeite, Terlinguaite, Eglestonite, Terlinguacreekite	Hg	4206	McDermitt Mine, Opalite District, Humboldt Co., Nevada, USA		Noble et al. (1988)	10.2113/gsecongeo.83.4.859	EG83_859

Sample	Source Locality	Reference URL

All locality data graciously provided by mindat.org

All age data...