Mineral Evolution Database

Created and maintained by the Mineral Evolution Project in partnership with RRUFF and mindat.

Mineral locality data provided by mindat.org

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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:
Hornitos District, West Belt, Mariposa Co., California, USA

Oldest recorded age at locality: 1409
Youngest recorded age at locality: 138

mindat Locality ID: 249228
mindat URL: http://www.mindat.org/loc-249228.html

Tectonic Settings:

Total number of sublocalities beneath "Hornitos District, West Belt, Mariposa Co., California, USA": 78
Total number of bottom-level sublocalities: 72

Number of Child Localities: 5
Child Localities:
Hornitos
Quartz Mountain [2]
Quartzburg
Santa Cruz Mountain
Three Buttes (Tres Cerritos)

Latitude: 37°28'36"N
Longitude: 120°12'58"W
Decimal Degree (lat, lon): 37.476666666667,-120.21611111111

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.

Acanthite	Andalusite	Arsenopyrite	Auricupride	Baryte	Calcite	Chalcopyrite	Clay	Copper	Corundum
Covellite	Malachite	Mica	None	Perovskite	Potarite	Pyrite	Pyrophyllite	Quartz	Rhodonite
Rocksalt	Sphalerite	Sulphur	Tetrahedrite

Acanthite ()*	Alunite ()*	Andalusite ()*	Ankerite ()*	Arsenopyrite ()*
Baryte ()*	Bornite ()*	Calcite ()*	Chalcocite ()*	Chalcopyrite ()*
Cooperite ()*	Covellite ()*	Galena ()*	Gold ()*	Hematite ()*
Iridium ()*	Isoferroplatinum ()*	Malachite ()*	Muscovite ()*	Osmium ()*
Platinum ()*	Proustite ()*	Pyrargyrite ()*	Pyrite ()*	Pyrophyllite ()*
Quartz ()*	Rhodonite ()*	Ruthenium ()*	Sphalerite ()*	Sulphur ()*
Tetraferroplatinum ()*	Tetrahedrite-(Zn) ()*	Todorokite ()*

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 Al As Au Ba C Ca Cu Fe H Ir K Mg Mn Na O Os Pb Pt Ru S Sb Si Sr Zn

Elements from minerals reported directly at this locality:

Structural Groups for minerals in this locality:
Acanthite Andalusite Arsenopyrite Auricupride Baryte Calcite Chalcopyrite Clay Copper Corundum
Covellite Malachite Mica None Perovskite Potarite Pyrite Pyrophyllite Quartz Rhodonite
Rocksalt Sphalerite Sulphur Tetrahedrite

33 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
Acanthite ()*	Acanthite	Ag₂S			1	163339	2793
Alunite ()*	None	KAl₃(SO₄)₂(OH)₆			1	163363	966
Andalusite ()*	Andalusite	Al₂SiO₅			2	163306,163364	1310
Ankerite ()*	None	Ca(Fe²⁺,Mg)(CO₃)₂			1	163314	3092
Arsenopyrite ()*	Arsenopyrite	FeAsS			1	163339	9052
Baryte ()*	Baryte	Ba(SO₄)	170	170	2	163331,163339	11547
Bornite ()*	None	Cu₅FeS₄			2	163326,163339	5516
Calcite ()*	Calcite	Ca(CO₃)	170	170	1	163331	27770
Chalcocite ()*	None	Cu₂S	170	170	1	163331	5707
Chalcopyrite ()*	Chalcopyrite	CuFeS₂	170	170	6	163314,163326,163328,163331,163339,163349	27198
Cooperite ()*	None	PtS			1	163348	124
Covellite ()*	Covellite	CuS	170	170	2	163331,163354	4165
Galena ()*	Rocksalt	PbS	170	170	5	163314,163316,163331,163339,163349	24243
Gold ()*	Copper	Au			30	163296,163298,163299,163301,163303,163314,163316,163317,163318,163325,163326,163327,163328,163329,163333,163336,163339,163340,163341,163342,163344,163345,163346,163348,163349,163351,163353,163357,163365,163366	30554
Hematite ()*	Corundum	Fe₂O₃	170	170	2	163331,163353	14640
Iridium ()*	Copper	Ir			1	163348	162
Isoferroplatinum ()*	Auricupride Perovskite	Pt₃Fe			1	163348	128
Malachite ()*	Malachite	Cu₂(CO₃)(OH)₂	170	170	1	163331	12537
Muscovite ()*	Mica Clay	KAl₂(Si₃Al)O₁₀(OH)₂	170	170	1	163331	17380
Osmium ()*	None	Os			1	163348	169
Platinum ()*	Copper	Pt			1	163348	485
Proustite ()*	None	Ag₃AsS₃			1	163339	733
Pyrargyrite ()*	None	Ag₃SbS₃			2	163314,163334	1425
Pyrite ()*	Pyrite	FeS₂	170	170	13	163301,163313,163314,163317,163326,163328,163331,163339,163341,163342,163349,163353,163354	39462
Pyrophyllite ()*	Clay Pyrophyllite	Al₂Si₄O₁₀(OH)₂			2	163357,163368	771
Quartz ()*	Quartz	SiO₂	170	170	22	163299,163301,163303,163313,163314,163317,163318,163326,163329,163331,163333,163336,163339,163340,163341,163342,163344,163349,163353,163354,163357,163368	61156
Rhodonite ()*	Rhodonite	CaMn₃Mn(Si₅O₁₅)			1	163332	969
Ruthenium ()*	None	Ru			1	163348	46
Sphalerite ()*	Sphalerite	ZnS	170	170	4	163316,163331,163339,163349	21482
Sulphur ()*	Sulphur	S			2	163294,163354	2045
Tetraferroplatinum ()*	Potarite	PtFe			1	163348	66
Tetrahedrite-(Zn) ()*	Tetrahedrite	Cu₆(Cu₄Zn₂)Sb₄S₁₃	170	170	1	163331	5317
Todorokite ()*	None	(Na,Ca,K,Ba,Sr)_1-x(Mn,Mg,Al)₆O₁₂·3-4H₂O			1	163353	433

22 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	Age applies to these Elements	MinDat Locality ID	Dated Locality (Max Age)	Location as listed in reference	Reference	Reference ID
vms-01024	170	170	Jurassic					S	81941	Blue Moon Mine (Porcupine Mine; Blue Cloud Mine; Red Cloud Mine; Percupine Mine; American Eagle Mine; Bullion Hill Mine), Quartzburg, Hornitos District, West Belt, Mariposa Co., California, USA	Blue Moon	Moiser et al. (2009)	USGSOFR2009_1034
USGS-U-Th-Pb-02591_206_238	146	146	146	206_238	age of intrusion	zircon	Zircon		249957	Waltz Property [2], Three Buttes (Tres Cerritos), Hornitos District, West Belt, Mariposa Co., California, USA		USGS-U-Th-Pb	USGS-U-Th-Pb
USGS-U-Th-Pb-02591_207_206	155	143	149±6	207_206	age of intrusion	zircon	Zircon		249957	Waltz Property [2], Three Buttes (Tres Cerritos), Hornitos District, West Belt, Mariposa Co., California, USA		USGS-U-Th-Pb	USGS-U-Th-Pb
USGS-U-Th-Pb-02591_207_235	146	146	146	207_235	age of intrusion	zircon	Zircon		249957	Waltz Property [2], Three Buttes (Tres Cerritos), Hornitos District, West Belt, Mariposa Co., California, USA		USGS-U-Th-Pb	USGS-U-Th-Pb
USGS-U-Th-Pb-02592_206_238	145	145	145	206_238	age of intrusion	zircon	Zircon		249957	Waltz Property [2], Three Buttes (Tres Cerritos), Hornitos District, West Belt, Mariposa Co., California, USA		USGS-U-Th-Pb	USGS-U-Th-Pb
USGS-U-Th-Pb-02592_207_206	155	141	148±7	207_206	age of intrusion	zircon	Zircon		249957	Waltz Property [2], Three Buttes (Tres Cerritos), Hornitos District, West Belt, Mariposa Co., California, USA		USGS-U-Th-Pb	USGS-U-Th-Pb
USGS-U-Th-Pb-02592_207_235	145	145	145	207_235	age of intrusion	zircon	Zircon		249957	Waltz Property [2], Three Buttes (Tres Cerritos), Hornitos District, West Belt, Mariposa Co., California, USA		USGS-U-Th-Pb	USGS-U-Th-Pb
USGS-U-Th-Pb-02593_206_238	162	162	162	206_238	age of intrusion	zircon	Zircon		249957	Waltz Property [2], Three Buttes (Tres Cerritos), Hornitos District, West Belt, Mariposa Co., California, USA		USGS-U-Th-Pb	USGS-U-Th-Pb
USGS-U-Th-Pb-02593_207_206	554	546	550±4	207_206	age of intrusion	zircon	Zircon		249957	Waltz Property [2], Three Buttes (Tres Cerritos), Hornitos District, West Belt, Mariposa Co., California, USA		USGS-U-Th-Pb	USGS-U-Th-Pb
USGS-U-Th-Pb-02593_207_235	189	189	189	207_235	age of intrusion	zircon	Zircon		249957	Waltz Property [2], Three Buttes (Tres Cerritos), Hornitos District, West Belt, Mariposa Co., California, USA		USGS-U-Th-Pb	USGS-U-Th-Pb
USGS-U-Th-Pb-02594_206_238	138	138	138	206_238	age of intrusion	zircon	Zircon		249957	Waltz Property [2], Three Buttes (Tres Cerritos), Hornitos District, West Belt, Mariposa Co., California, USA		USGS-U-Th-Pb	USGS-U-Th-Pb
USGS-U-Th-Pb-02594_207_206	177	165	171±6	207_206	age of intrusion	zircon	Zircon		249957	Waltz Property [2], Three Buttes (Tres Cerritos), Hornitos District, West Belt, Mariposa Co., California, USA		USGS-U-Th-Pb	USGS-U-Th-Pb
USGS-U-Th-Pb-02594_207_235	140	140	140	207_235	age of intrusion	zircon	Zircon		249957	Waltz Property [2], Three Buttes (Tres Cerritos), Hornitos District, West Belt, Mariposa Co., California, USA		USGS-U-Th-Pb	USGS-U-Th-Pb
USGS-U-Th-Pb-02595_206_238	149	149	149	206_238	age of intrusion	zircon	Zircon		249957	Waltz Property [2], Three Buttes (Tres Cerritos), Hornitos District, West Belt, Mariposa Co., California, USA		USGS-U-Th-Pb	USGS-U-Th-Pb
USGS-U-Th-Pb-02595_207_206	337	329	333±4	207_206	age of intrusion	zircon	Zircon		249957	Waltz Property [2], Three Buttes (Tres Cerritos), Hornitos District, West Belt, Mariposa Co., California, USA		USGS-U-Th-Pb	USGS-U-Th-Pb
USGS-U-Th-Pb-02595_207_235	161	161	161	207_235	age of intrusion	zircon	Zircon		249957	Waltz Property [2], Three Buttes (Tres Cerritos), Hornitos District, West Belt, Mariposa Co., California, USA		USGS-U-Th-Pb	USGS-U-Th-Pb
USGS-U-Th-Pb-02596_206_238	190	190	190	206_238	age of intrusion	zircon	Zircon		249957	Waltz Property [2], Three Buttes (Tres Cerritos), Hornitos District, West Belt, Mariposa Co., California, USA		USGS-U-Th-Pb	USGS-U-Th-Pb
USGS-U-Th-Pb-02596_207_206	769	763	766±3	207_206	age of intrusion	zircon	Zircon		249957	Waltz Property [2], Three Buttes (Tres Cerritos), Hornitos District, West Belt, Mariposa Co., California, USA		USGS-U-Th-Pb	USGS-U-Th-Pb
USGS-U-Th-Pb-02596_207_235	241	241	241	207_235	age of intrusion	zircon	Zircon		249957	Waltz Property [2], Three Buttes (Tres Cerritos), Hornitos District, West Belt, Mariposa Co., California, USA		USGS-U-Th-Pb	USGS-U-Th-Pb
USGS-U-Th-Pb-02611_206_238	465	465	465	206_238	age not evaluated	zircon	Zircon		249957	Waltz Property [2], Three Buttes (Tres Cerritos), Hornitos District, West Belt, Mariposa Co., California, USA		USGS-U-Th-Pb	USGS-U-Th-Pb
USGS-U-Th-Pb-02611_207_206	1409	1407	1408±1	207_206	age not evaluated	zircon	Zircon		249957	Waltz Property [2], Three Buttes (Tres Cerritos), Hornitos District, West Belt, Mariposa Co., California, USA		USGS-U-Th-Pb	USGS-U-Th-Pb
USGS-U-Th-Pb-02611_207_235	662	662	662	207_235	age not evaluated	zircon	Zircon		249957	Waltz Property [2], Three Buttes (Tres Cerritos), Hornitos District, West Belt, Mariposa Co., California, USA		USGS-U-Th-Pb	USGS-U-Th-Pb

Sample	Source Locality	Reference URL
X050133	Indian Gulch Mine, Santa Cruz Mountain, Hornitos District, West Belt, Mariposa Co., California, USA	https://rruff.info/X050133

All locality data graciously provided by mindat.org

All age data...