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:
Merced Co., California, USA

Oldest recorded age at locality: 127
Youngest recorded age at locality: 65

mindat Locality ID: 24743
mindat URL: http://www.mindat.org/loc-24743.html

Tectonic Settings:

Total number of sublocalities beneath "Merced Co., California, USA": 67
Total number of bottom-level sublocalities: 49

Number of Child Localities: 15
Child Localities:
California Aquaduct Dos Amigos Pumping Station
Cressey
Delhi
Diablo Range
Gustine
Hopeton
Laguna Seca Creek Area
Le Grand
Los Banos
Merced Bottom
Merced Falls
Ortigalita Peak
Planada
Snelling District
Sugarloaf

Latitude: 37°11'4"N
Longitude: 120°40'43"W
Decimal Degree (lat, lon): 37.184444444444,-120.67861111111

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	Aragonite	Arsenolite	Baryte	Blödite	Botryogen	Calcite	Chalcopyrite	Clay
Copiapite	Copper	Corundum	Epsomite	Gypsum	Halotrichite	Kaolinite	Melanterite	None	Not in a structural group
Pyrite	Pyrochlore	Quartz	Rutile	Römerite	Sphalerite	Spinel	Stibnite	Stilpnomelane	Sulphur
Zircon

Alunogen ()*	Aragonite ()*	Baryte ()*	Blödite ()*	Botryogen ()*
Calcite ()*	Cervantite ()*	Chalcopyrite ()*	Chromite ()*	Cinnabar ()*
Cooperite ()*	Copiapite ()*	Copper ()*	Epsomite ()*	Gold ()*
Gypsum ()*	Halotrichite ()*	Hematite ()*	Howieite ()*	Hydromagnesite ()*
Ilmenite ()*	Iridium ()*	Jarosite ()*	Kaolinite ()*	Magnesite ()*
Magnetite ()*	Melanterite ()*	Nitratine ()*	Opal ()*	Pickeringite ()*
Platinum ()*	Pyrite ()*	Quartz ()*	Römerite ()*	Rutheniridosmine ()*
Rutile ()*	Senarmontite ()*	Sperrylite ()*	Sphalerite ()*	Stibiconite ()*
Stibnite ()*	Stilpnomelane ()*	Sulphur ()*	Thorite ()*	Valentinite ()*
Zircon ()*

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 Ba C Ca Cr Cu Fe H Hg Ir K Mg N Na O Os Pt Ru S Sb Si Th Ti Zn Zr

Elements from minerals reported directly at this locality:

Structural Groups for minerals in this locality:
Alunite Amorphous Aragonite Arsenolite Baryte Blödite Botryogen Calcite Chalcopyrite Clay
Copiapite Copper Corundum Epsomite Gypsum Halotrichite Kaolinite Melanterite None Not in a structural group
Pyrite Pyrochlore Quartz Rutile Römerite Sphalerite Spinel Stibnite Stilpnomelane Sulphur
Zircon

46 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
Alunogen ()*	Not in a structural group	Al₂(SO₄)₃(H₂O)₁₂·5H₂O			1	163748	272
Aragonite ()*	Aragonite	Ca(CO₃)			1	163742	3250
Baryte ()*	Baryte	Ba(SO₄)			3	163750,163771,163772	11547
Blödite ()*	Blödite	Na₂Mg(SO₄)₂·4H₂O			1	163758	130
Botryogen ()*	Botryogen	MgFe³⁺(SO₄)₂(OH)·7H₂O			1	163748	45
Calcite ()*	Calcite	Ca(CO₃)			1	163740	27770
Cervantite ()*	None	Sb³⁺Sb⁵⁺O₄			1	163748	352
Chalcopyrite ()*	Chalcopyrite	CuFeS₂	127	65	2	163779,163797	27198
Chromite ()*	Spinel	Fe²⁺Cr₂O₄			2	163788,163795	3902
Cinnabar ()*	None	HgS			3	163747,163748,163750	2600
Cooperite ()*	None	PtS			1	163789	124
Copiapite ()*	Copiapite	Fe²⁺Fe³⁺₄(SO₄)₆(OH)₂·20H₂O			1	163748	382
Copper ()*	Copper	Cu			1	163779	3846
Epsomite ()*	Epsomite	Mg(SO₄)·7H₂O			1	163748	484
Gold ()*	Copper	Au			12	163756,163763,163769,163785,163786,163787,163790,163791,163792,163793,163794,163795	30554
Gypsum ()*	Gypsum	Ca(SO₄)·2H₂O			3	163733,163734,163748	6890
Halotrichite ()*	Halotrichite	Fe²⁺Al₂(SO₄)₄·22H₂O			1	163748	409
Hematite ()*	Corundum	Fe₂O₃			2	163788,163795	14640
Howieite ()*	None	Na(Fe²⁺,Fe³⁺,Al,Mg)₁₂(Si₆O₁₇)₂(O,OH)₁₀			1	163742	16
Hydromagnesite ()*	None	Mg₅(CO₃)₄(OH)₂·4H₂O			1	163754	341
Ilmenite ()*	Corundum	Fe²⁺Ti⁴⁺O₃			2	163788,163795	5433
Iridium ()*	Copper	Ir			2	163739,163789	162
Jarosite ()*	Alunite	KFe³⁺₃(SO₄)₂(OH)₆			2	163736,163743	2228
Kaolinite ()*	Clay Kaolinite	Al₂Si₂O₅(OH)₄			3	163747,163748,163750	5591
Magnesite ()*	Calcite	Mg(CO₃)	127	65	1	163798	1487
Magnetite ()*	Spinel	Fe²⁺Fe³⁺₂O₄			2	163788,163795	14899
Melanterite ()*	Melanterite	Fe(SO₄)·7H₂O			1	163748	915
Nitratine ()*	Calcite	Na(NO₃)			1	163767	91
Opal ()*	Amorphous	SiO₂·nH₂O			2	163733,163735	2994
Pickeringite ()*	Halotrichite	MgAl₂(SO₄)₄·22H₂O			1	163748	265
Platinum ()*	Copper	Pt			7	163739,163787,163789,163790,163791,163794,163795	485
Pyrite ()*	Pyrite	FeS₂			4	163747,163748,163788,163795	39462
Quartz ()*	Quartz	SiO₂			3	163742,163750,163779	61156
Römerite ()*	Römerite	Fe²⁺Fe³⁺₂(SO₄)₄·14H₂O			1	163748	115
Rutheniridosmine ()*	None	(Ir,Os,Ru)			2	163739,163789	47
Rutile ()*	Rutile	TiO₂			2	163788,163795	5614
Senarmontite ()*	Arsenolite	Sb₂O₃			1	163748	179
Sperrylite ()*	Pyrite	PtAs₂			1	163789	337
Sphalerite ()*	Sphalerite	ZnS			1	163772	21482
Stibiconite ()*	Pyrochlore	Sb³⁺Sb⁵⁺₂O₆(OH)			1	163748	446
Stibnite ()*	Stibnite	Sb₂S₃			3	163746,163747,163748	3418
Stilpnomelane ()*	Stilpnomelane Clay	(K,Ca,Na)(Fe,Mg,Al)₈(Si,Al)₁₂(O,OH)₃₆·nH₂O			1	163742	456
Sulphur ()*	Sulphur	S			1	163748	2045
Thorite ()*	Zircon	Th(SiO₄)			2	163788,163795	1006
Valentinite ()*	None	Sb₂O₃			1	163748	369
Zircon ()*	Zircon	Zr(SiO₄)			2	163788,163795	5251

9 Ages assigned to this locality:

Excel ID	Max Age (Ma)	Min Age (Ma)	Age as listed in reference	Dating Method	Age Interpret	Sample Source	Dated Mineral	MinDat Locality ID	Dated Locality (Max Age)	Reference	Reference ID
USGS-U-Th-Pb-02346_206_238	95.3	95.3	95.3	206_238	age of intrusion	zircon	Zircon	248132	Sugarloaf, Merced Co., California, USA	USGS-U-Th-Pb	USGS-U-Th-Pb
USGS-U-Th-Pb-02346_207_206	125	65	95±30	207_206	age of intrusion	zircon	Zircon	248132	Sugarloaf, Merced Co., California, USA	USGS-U-Th-Pb	USGS-U-Th-Pb
USGS-U-Th-Pb-02346_207_235	95.3	95.3	95.3	207_235	age of intrusion	zircon	Zircon	248132	Sugarloaf, Merced Co., California, USA	USGS-U-Th-Pb	USGS-U-Th-Pb
USGS-U-Th-Pb-02347_206_238	94.7	94.7	94.7	206_238	age of intrusion	zircon	Zircon	248132	Sugarloaf, Merced Co., California, USA	USGS-U-Th-Pb	USGS-U-Th-Pb
USGS-U-Th-Pb-02347_207_206	106	70	88±18	207_206	age of intrusion	zircon	Zircon	248132	Sugarloaf, Merced Co., California, USA	USGS-U-Th-Pb	USGS-U-Th-Pb
USGS-U-Th-Pb-02347_207_235	94.4	94.4	94.4	207_235	age of intrusion	zircon	Zircon	248132	Sugarloaf, Merced Co., California, USA	USGS-U-Th-Pb	USGS-U-Th-Pb
USGS-U-Th-Pb-02348_206_238	95.4	95.4	95.4	206_238	age of intrusion	zircon	Zircon	248132	Sugarloaf, Merced Co., California, USA	USGS-U-Th-Pb	USGS-U-Th-Pb
USGS-U-Th-Pb-02348_207_206	127	91	109±18	207_206	age of intrusion	zircon	Zircon	248132	Sugarloaf, Merced Co., California, USA	USGS-U-Th-Pb	USGS-U-Th-Pb
USGS-U-Th-Pb-02348_207_235	95.9	95.9	95.9	207_235	age of intrusion	zircon	Zircon	248132	Sugarloaf, Merced Co., California, USA	USGS-U-Th-Pb	USGS-U-Th-Pb

Sample	Source Locality	Reference URL
X050116	Gustine, Merced Co., California, USA	https://rruff.info/X050116

All locality data graciously provided by mindat.org

All age data...