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:
Ventura Co., California, USA

Oldest recorded age at locality: 25
Youngest recorded age at locality: 21

mindat Locality ID: 29852
mindat URL: http://www.mindat.org/loc-29852.html

Tectonic Settings:

Total number of sublocalities beneath "Ventura Co., California, USA": 198
Total number of bottom-level sublocalities: 146

Number of Child Localities: 19
Child Localities:
Bardsdale
Camarillo
Cuyama Valley
Fillmore
Los Sauces Creek
Muscle Shoals
Oak View
San Emigdio Mts
San Nicolas Island
Santa Monica Mts
Santa Paula
Simi Valley
Thousand Oaks
Topatopa Mts
Unnamed Quarry (MRDS - 10166031)
Unspecified Offshore Drill Hole (Pacific Ocean)
Unspecified U Occurrence
Ventura
Westlake Village

Latitude: 34°15'0"N
Longitude: 119°'54"W
Decimal Degree (lat, lon): 34.25,-119.015

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	Analcime	Apatite	Apophyllite	Aragonite	Arsenopyrite	Autunite	Calcite	Chalcopyrite
Clay	Copper	Corundum	Fluorite	Gypsum	Gyrolite	Iron	Malachite	Marcasite	Mica
Millerite	Molybdenite	Mordenite	Natrolite	Nickeline	None	Not in a structural group	Pentlandite	Picromerite	Pseudobrookite
Pyrite	Quartz	Rocksalt	Scheelite	Smectite-vermiculite	Sphalerite	Sulphur	Talc	Wurtzite

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 Au B Ba C Ca Cd Cu F Fe H K Mg Mn Mo N Na Ni O P Pb S Si Sr Ti U V Zn

Elements from minerals reported directly at this locality:

Structural Groups for minerals in this locality:
Alunite Amorphous Analcime Apatite Apophyllite Aragonite Arsenopyrite Autunite Calcite Chalcopyrite
Clay Copper Corundum Fluorite Gypsum Gyrolite Iron Malachite Marcasite Mica
Millerite Molybdenite Mordenite Natrolite Nickeline None Not in a structural group Pentlandite Picromerite Pseudobrookite
Pyrite Quartz Rocksalt Scheelite Smectite-vermiculite Sphalerite Sulphur Talc Wurtzite

53 IMA Minerals at location:

Analcime ()*	Arsenopyrite ()*	Aurichalcite ()*	Autunite ()*	Azurite ()*
Becquerelite ()*	Boussingaultite ()*	Calcite ()*	Carnotite ()*	Celadonite ()*
Cerussite ()*	Chalcopyrite ()*	Colemanite ()*	Cuprite ()*	Epistilbite ()*
Fluorapatite ()*	Galena ()*	Gold ()*	Greenockite ()*	Gypsum ()*
Hematite ()*	Howlite ()*	Hydroboracite ()*	Hydroxyapophyllite-(K) ()*	Iron ()*
Jarosite ()*	Malachite ()*	Marcasite ()*	Mesolite ()*	Millerite ()*
Molybdenite ()*	Montmorillonite ()*	Mordenite ()*	Muscovite ()*	Natrolite ()*
Opal ()*	Pentlandite ()*	Pseudobrookite ()*	Pyrite ()*	Pyrrhotite ()*
Quartz ()*	Rosickýite ()*	Saponite ()*	Schröckingerite ()*	Smithsonite ()*
Sphalerite ()*	Sulphur ()*	Taenite ()*	Talc ()*	Todorokite ()*
Tungusite ()*	Uraninite ()*	Wulfenite ()*

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
Analcime ()*	Analcime	Na(AlSi₂O₆)·H₂O	25	21	5	183823,183893,183900,183906,183911	1627
Arsenopyrite ()*	Arsenopyrite	FeAsS			1	183907	9052
Aurichalcite ()*	None	(Zn,Cu)₅(CO₃)₂(OH)₆			1	183907	919
Autunite ()*	Autunite	Ca(UO₂)₂(PO₄)₂·10-12H₂O			2	183877,183879	1272
Azurite ()*	Not in a structural group	Cu₃(CO₃)₂(OH)₂			3	183907,183925,183943	5509
Becquerelite ()*	None	Ca(UO₂)₆O₄(OH)₆·8H₂O			1	183877	92
Boussingaultite ()*	Picromerite	(NH₄)₂Mg(SO₄)₂·6H₂O			1	183916	30
Calcite ()*	Calcite	Ca(CO₃)	25	21	2	183893,183904	27770
Carnotite ()*	None	K₂(UO₂)₂(VO₄)₂·3H₂O			3	183877,183878,183881	1184
Celadonite ()*	Mica Clay	KMgFe³⁺Si₄O₁₀(OH)₂			1	183913	309
Cerussite ()*	Aragonite	Pb(CO₃)			1	183907	4979
Chalcopyrite ()*	Chalcopyrite	CuFeS₂			3	183861,183907,183925	27198
Colemanite ()*	None	CaB₃O₄(OH)₃·H₂O	25	21	10	183795,183858,183890,183891,183893,183895,183896,183900,183901,183902	144
Cuprite ()*	Not in a structural group	Cu₂O			1	183925	2970
Epistilbite ()*	Mordenite	Ca₃[Si₁₈Al₆O₄₈]·16H₂O			1	183911	138
Fluorapatite ()*	Apatite	Ca₅(PO₄)₃F			1	183793	2740
Galena ()*	Rocksalt	PbS			2	183872,183907	24243
Gold ()*	Copper	Au			5	183819,183830,183861,183873,183875	30554
Greenockite ()*	Wurtzite	CdS			1	183907	717
Gypsum ()*	Gypsum	Ca(SO₄)·2H₂O	25	21	18	183751,183759,183761,183791,183795,183800,183802,183883,183886,183890,183891,183892,183893,183895,183896,183900,183901,183902	6890
Hematite ()*	Corundum	Fe₂O₃			1	183913	14640
Howlite ()*	None	Ca₂SiB₅O₉(OH)₅			1	183900	36
Hydroboracite ()*	None	CaMg[B₃O₄(OH)₃]₂·3H₂O	25	21	1	183893	42
Hydroxyapophyllite-(K) ()*	Apophyllite	KCa₄Si₈O₂₀(OH,F)·8H₂O			1	183906	85
Iron ()*	Iron	Fe			1	183937	1089
Jarosite ()*	Alunite	KFe³⁺₃(SO₄)₂(OH)₆			1	183877	2228
Malachite ()*	Malachite	Cu₂(CO₃)(OH)₂			2	183907,183925	12537
Marcasite ()*	Marcasite	FeS₂			1	183861	5674
Mesolite ()*	Natrolite	Na₂Ca₂(Si₉Al₆)O₃₀·8H₂O			3	183850,183887,183903	425
Millerite ()*	Millerite	NiS			1	183925	1066
Molybdenite ()*	Molybdenite	MoS₂			2	183817,183848	5800
Montmorillonite ()*	Clay Smectite-vermiculite	(Na,Ca)_0.3(Al,Mg)₂Si₄O₁₀(OH)₂·nH₂O			4	183765,183768,183769,183877	1508
Mordenite ()*	Mordenite	(Na₂,Ca,K₂)₄(Al₈Si₄₀)O₉₆·28H₂O			2	183906,183911	405
Muscovite ()*	Mica Clay	KAl₂(Si₃Al)O₁₀(OH)₂			1	183816	17380
Natrolite ()*	Natrolite	Na₂(Si₃Al₂)O₁₀·2H₂O	25	21	2	183887,183911	1236
Opal ()*	Amorphous	SiO₂·nH₂O			2	183761,183913	2994
Pentlandite ()*	Pentlandite	(Ni,Fe)₉S₈			1	183925	1512
Pseudobrookite ()*	Pseudobrookite	(Fe³⁺₂Ti)O₅			1	183913	164
Pyrite ()*	Pyrite	FeS₂			3	183861,183906,183907	39462
Pyrrhotite ()*	Nickeline	Fe₇S₈			1	183925	9056
Quartz ()*	Quartz	SiO₂			6	183861,183877,183906,183911,183913,183933	61156
Rosickýite ()*	None	S			1	183928	22
Saponite ()*	Clay Smectite-vermiculite	(Ca,Na)_0.3(Mg,Fe)₃(Si,Al)₄O₁₀(OH)₂·4H₂O			1	183911	301
Schröckingerite ()*	None	NaCa₃(UO₂)(SO₄)(CO₃)₃F·10H₂O			1	183929	128
Smithsonite ()*	Calcite	Zn(CO₃)			1	183907	2473
Sphalerite ()*	Sphalerite	ZnS			1	183907	21482
Sulphur ()*	Sulphur	S			1	183763	2045
Taenite ()*	None	(Ni,Fe)			1	183937	703
Talc ()*	Clay Talc	Mg₃Si₄O₁₀(OH)₂			1	183789	3337
Todorokite ()*	None	(Na,Ca,K,Ba,Sr)_1-x(Mn,Mg,Al)₆O₁₂·3-4H₂O			1	183907	433
Tungusite ()*	Gyrolite	Ca₁₄Fe²⁺₉Si₂₄O₆₀(OH)₂₂			1	183906	7
Uraninite ()*	Fluorite	UO₂			1	183877	2718
Wulfenite ()*	Scheelite	PbMoO₄			1	183907	1655

2 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
	NAVDAT-34021	25	21	23±2					34021						98391	Frazier Mine (Frazier Borax Mine), Lockwood Valley, Lake Of The Woods Area, Ventura County Borate District (Stauffer District), San Emigdio Mts, Ventura Co., California, USA		NAVDAT		NAVDAT
	NAVDAT-34022	25	21	23±2					34022						98391	Frazier Mine (Frazier Borax Mine), Lockwood Valley, Lake Of The Woods Area, Ventura County Borate District (Stauffer District), San Emigdio Mts, Ventura Co., California, USA		NAVDAT		NAVDAT

Sample	Source Locality	Reference URL

All locality data graciously provided by mindat.org

All age data...