Vote for your favorite mineral in #MinCup26! - Bournonite vs. Vesuvianite
Cogwheels of bournonite are up against colourful vesuvianite.
Log InRegister
Quick Links : The Mindat ManualThe Rock H. Currier Digital LibraryMindat Newsletter [Free Download]
Home PageAbout MindatThe Mindat ManualHistory of MindatCopyright StatusWho We AreContact UsAdvertise on Mindat
Donate to MindatCorporate SponsorshipSponsor a PageSponsored PagesMindat AdvertisersAdvertise on Mindat
Learning CenterWhat is a mineral?The most common minerals on earthInformation for EducatorsMindat ArticlesThe ElementsThe Rock H. Currier Digital LibraryGeologic TimeExplore Fossils
Minerals by PropertiesMinerals by ChemistryMineral Visual ExplorerAdvanced Locality SearchRandom MineralRandom LocalitySearch by minIDLocalities Near MeSearch ArticlesSearch GlossaryMore Search Options
Search For:
Mineral Name:
Locality Name:
Keyword(s):
 
The Mindat ManualAdd a New PhotoRate PhotosLocality Edit ReportCoordinate Completion ReportAdd Glossary Item
Mining CompaniesStatisticsUsersMineral MuseumsClubs & OrganizationsMineral Shows & EventsThe Mindat DirectoryDevice SettingsThe Mineral QuizTime Machine
Photo SearchPhoto GalleriesSearch by ColorPhoto Colour ExplorerNew Photos TodayNew Photos YesterdayMembers' Photo GalleriesPast Photo of the Day GalleryPhotography

Quartzburg, Hornitos Mining District, West Belt, Mariposa County, California, USAi
Regional Level Types
Quartzburg- not defined -
Hornitos Mining DistrictMining District
West Belt- not defined -
Mariposa CountyCounty
CaliforniaState
USACountry

This page is currently not sponsored. Click here to sponsor this page.
PhotosMapsSearchMineralogy
02630440017271974179814.jpg
Native Gold

Quartzburg, Hornitos Mining District, West Belt, Mariposa County, California, USA
05973970017579113066996.jpg
Native Gold

Quartzburg, Hornitos Mining District, West Belt, Mariposa County, California, USA
01306800017638902515455.jpg
Native Gold

Quartzburg, Hornitos Mining District, West Belt, Mariposa County, California, USA
02630440017271974179814.jpg
Native Gold

Quartzburg, Hornitos Mining District, West Belt, Mariposa County, California, USA
02057190017272026156037.jpg
Native Gold

Quartzburg, Hornitos Mining District, West Belt, Mariposa County, California, USA
08358090017849894042891.jpg
Native Gold

Quartzburg, Hornitos Mining District, West Belt, Mariposa County, California, USA
02630440017271974179814.jpg
Native Gold

Quartzburg, Hornitos Mining District, West Belt, Mariposa County, California, USA
02259660017272026252434.jpg
Native Gold

Quartzburg, Hornitos Mining District, West Belt, Mariposa County, California, USA
Latitude & Longitude (WGS84):
37° 32' 3'' North , 120° 12' 28'' West
Latitude & Longitude (decimal):
37.53417,-120.20778
GRN:
N26W68
Köppen climate type:
Csa : Hot-summer Mediterranean climate
Nearest Settlements:
PlacePopulationDistance
Bear Valley125 (2011)8.7km
Catheys Valley825 (2011)14.9km
Coulterville201 (2011)19.6km
Snelling231 (2011)20.3km
Mariposa2,173 (2017)22.0km
Nearest Clubs:
Local clubs are the best way to get access to collecting localities
ClubLocationDistance
Mariposa Gem & Mineral ClubMariposa, California22km
Mindat Locality ID:
7957
Long-form identifier:
mindat:1:2:7957:3
GUID (UUID V4):
0


A former populated place no longer on maps or in the USGS GNIS database. The only coordinates available are for the Quartzburg school.

Select Mineral List Type

Standard Detailed Gallery Strunz Chemical Elements

Commodity List

This is a list of exploitable or exploited mineral commodities recorded from this region.


Mineral List

Mineral list contains entries from the region specified including sub-localities

28 valid minerals.

Rock Types Recorded


Rock list contains entries from the region specified including sub-localities

Select Rock List Type

Alphabetical List Tree Diagram

Detailed Mineral List:

ⓘ Acanthite
Formula: Ag2S
ⓘ Arsenopyrite
Formula: FeAsS
ⓘ Baryte
Formula: BaSO4
ⓘ Bornite
Formula: Cu5FeS4
ⓘ Calcite
Formula: CaCO3
ⓘ Chalcocite
Formula: Cu2S
ⓘ Chalcopyrite
Formula: CuFeS2
Localities:
Blue Moon Mine (Porcupine Mine; Blue Cloud Mine; Red Cloud Mine; Percupine Mine; American Eagle Mine; Bullion Hill Mine), Quartzburg, Hornitos Mining District, West Belt, Mariposa County, California, USA
Badger Mine (Prescott Mine; Prescott Lode claim), Quartzburg, Hornitos Mining District, West Belt, Mariposa County, California, USA
Mount Gaines Mine (Frenchman Mine; Bearfield Mine; Barfield Mine; Mount Gaines Gold Mine), Quartzburg, Hornitos Mining District, West Belt, Mariposa County, California, USA
Silver Lead Mine (St. Gabriel and Honeycomb Mine; Silver Lead & Margaretta Mine; Silver Lead claim; Margaretta claim; St. Gabriel claim; Honeycomb claim), Quartzburg, Hornitos Mining District, West Belt, Mariposa County, California, USA
Unnamed Au prospect [15], Quartzburg, Hornitos Mining District, West Belt, Mariposa County, California, USA ? (more information)
ⓘ 'Chlorite Group'
ⓘ Cooperite
Formula: PtS
ⓘ Covellite
Formula: CuS
ⓘ Galena
Formula: PbS
ⓘ Hematite
Formula: Fe2O3
ⓘ Isoferroplatinum
Formula: Pt3Fe
ⓘ 'Limonite'
ⓘ Malachite
Formula: Cu2(CO3)(OH)2
ⓘ Muscovite
Formula: KAl2(AlSi3O10)(OH)2
ⓘ Muscovite var. Sericite
Formula: KAl2(AlSi3O10)(OH)2
ⓘ Native Gold
Formula: Au
Localities: Reported from at least 17 localities in this region.
ⓘ Native Iridium
Formula: (Ir,Os,Ru)
ⓘ Native Osmium
Formula: (Os,Ir,Ru)
ⓘ Native Platinum
Formula: Pt
ⓘ Native Ruthenium
Formula: (Ru,Ir)
ⓘ Native Sulphur
Formula: S8
Description: Pale yellow, loose granular aggregates, filling vugs in quartz as a replacement of sulphides.
ⓘ Proustite
Formula: Ag3AsS3
ⓘ 'Psilomelane'
ⓘ Pyrargyrite
Formula: Ag3SbS3
ⓘ Pyrite
Formula: FeS2
Localities: Reported from at least 8 localities in this region.
Description: Abundant.
ⓘ Quartz
Formula: SiO2
Localities: Reported from at least 12 localities in this region.
ⓘ Quartz var. Milky Quartz
Formula: SiO2
ⓘ Rhodonite
Formula: CaMn3Mn[Si5O15]
ⓘ Sphalerite
Formula: ZnS
Description: Occurs as a substantial deposit.
ⓘ Tetraferroplatinum
Formula: PtFe
ⓘ 'Tetrahedrite Subgroup'
Formula: Cu6(Cu4C2+2)Sb4S12S
ⓘ Todorokite
Formula: (Na,Ca,K,Ba,Sr)1-x(Mn,Mg,Al)6O12 · 3-4H2O
References:
Petrov, Alfredo (n.d.) Personal Communication.PXRD by John Attard, XRF by Alfredo Petrov May 2014

List of minerals arranged by Strunz 10th Edition classification

Group 1 - Elements
ⓘNative Gold1.AA.05Au
ⓘNative Osmium1.AF.05(Os,Ir,Ru)
ⓘNative Ruthenium1.AF.05(Ru,Ir)
ⓘNative Iridium1.AF.10(Ir,Os,Ru)
ⓘNative Platinum1.AF.10Pt
ⓘIsoferroplatinum1.AG.35Pt3Fe
ⓘTetraferroplatinum1.AG.40PtFe
ⓘNative Sulphur1.CC.05S8
Group 2 - Sulphides and Sulfosalts
ⓘChalcocite2.BA.05Cu2S
ⓘBornite2.BA.15Cu5FeS4
ⓘAcanthite2.BA.35Ag2S
ⓘCovellite2.CA.05aCuS
ⓘSphalerite2.CB.05aZnS
ⓘChalcopyrite2.CB.10aCuFeS2
ⓘCooperite2.CC.35bPtS
ⓘGalena2.CD.10PbS
ⓘPyrite2.EB.05aFeS2
ⓘArsenopyrite2.EB.20FeAsS
ⓘProustite2.GA.05Ag3AsS3
ⓘPyrargyrite2.GA.05Ag3SbS3
ⓘ'Tetrahedrite Subgroup'2.GB.05Cu6(Cu4C2+2)Sb4S12S
Group 4 - Oxides and Hydroxides
ⓘHematite4.CB.05Fe2O3
ⓘQuartz4.DA.05SiO2
ⓘvar. Milky Quartz4.DA.05SiO2
ⓘTodorokite4.DK.10(Na,Ca,K,Ba,Sr)1-x(Mn,Mg,Al)6O12 · 3-4H2O
Group 5 - Nitrates and Carbonates
ⓘCalcite5.AB.05CaCO3
ⓘMalachite5.BA.10Cu2(CO3)(OH)2
Group 7 - Sulphates, Chromates, Molybdates and Tungstates
ⓘBaryte7.AD.35BaSO4
Group 9 - Silicates
ⓘRhodonite9.DK.05CaMn3Mn[Si5O15]
ⓘMuscovite9.EC.15KAl2(AlSi3O10)(OH)2
ⓘvar. Sericite9.EC.15KAl2(AlSi3O10)(OH)2
Unclassified
ⓘ'Chlorite Group'-
ⓘ'Limonite'-
ⓘ'Psilomelane'-

List of minerals for each chemical element

HHydrogen
Hⓘ MalachiteCu2(CO3)(OH)2
Hⓘ MuscoviteKAl2(AlSi3O10)(OH)2
Hⓘ Todorokite(Na,Ca,K,Ba,Sr)1-x(Mn,Mg,Al)6O12 · 3-4H2O
Hⓘ Muscovite var. SericiteKAl2(AlSi3O10)(OH)2
CCarbon
Cⓘ CalciteCaCO3
Cⓘ MalachiteCu2(CO3)(OH)2
OOxygen
Oⓘ BaryteBaSO4
Oⓘ CalciteCaCO3
Oⓘ HematiteFe2O3
Oⓘ MalachiteCu2(CO3)(OH)2
Oⓘ MuscoviteKAl2(AlSi3O10)(OH)2
Oⓘ QuartzSiO2
Oⓘ RhodoniteCaMn3Mn[Si5O15]
Oⓘ Todorokite(Na,Ca,K,Ba,Sr)1-x(Mn,Mg,Al)6O12 · 3-4H2O
Oⓘ Quartz var. Milky QuartzSiO2
Oⓘ Muscovite var. SericiteKAl2(AlSi3O10)(OH)2
NaSodium
Naⓘ Todorokite(Na,Ca,K,Ba,Sr)1-x(Mn,Mg,Al)6O12 · 3-4H2O
MgMagnesium
Mgⓘ Todorokite(Na,Ca,K,Ba,Sr)1-x(Mn,Mg,Al)6O12 · 3-4H2O
AlAluminium
Alⓘ MuscoviteKAl2(AlSi3O10)(OH)2
Alⓘ Todorokite(Na,Ca,K,Ba,Sr)1-x(Mn,Mg,Al)6O12 · 3-4H2O
Alⓘ Muscovite var. SericiteKAl2(AlSi3O10)(OH)2
SiSilicon
Siⓘ MuscoviteKAl2(AlSi3O10)(OH)2
Siⓘ QuartzSiO2
Siⓘ RhodoniteCaMn3Mn[Si5O15]
Siⓘ Quartz var. Milky QuartzSiO2
Siⓘ Muscovite var. SericiteKAl2(AlSi3O10)(OH)2
SSulfur
Sⓘ AcanthiteAg2S
Sⓘ ArsenopyriteFeAsS
Sⓘ BaryteBaSO4
Sⓘ BorniteCu5FeS4
Sⓘ ChalcopyriteCuFeS2
Sⓘ ChalcociteCu2S
Sⓘ CooperitePtS
Sⓘ CovelliteCuS
Sⓘ GalenaPbS
Sⓘ ProustiteAg3AsS3
Sⓘ PyrargyriteAg3SbS3
Sⓘ PyriteFeS2
Sⓘ SphaleriteZnS
Sⓘ Native SulphurS8
Sⓘ Tetrahedrite SubgroupCu6(Cu4C22+)Sb4S12S
KPotassium
Kⓘ MuscoviteKAl2(AlSi3O10)(OH)2
Kⓘ Todorokite(Na,Ca,K,Ba,Sr)1-x(Mn,Mg,Al)6O12 · 3-4H2O
Kⓘ Muscovite var. SericiteKAl2(AlSi3O10)(OH)2
CaCalcium
Caⓘ CalciteCaCO3
Caⓘ RhodoniteCaMn3Mn[Si5O15]
Caⓘ Todorokite(Na,Ca,K,Ba,Sr)1-x(Mn,Mg,Al)6O12 · 3-4H2O
MnManganese
Mnⓘ RhodoniteCaMn3Mn[Si5O15]
Mnⓘ Todorokite(Na,Ca,K,Ba,Sr)1-x(Mn,Mg,Al)6O12 · 3-4H2O
FeIron
Feⓘ ArsenopyriteFeAsS
Feⓘ BorniteCu5FeS4
Feⓘ ChalcopyriteCuFeS2
Feⓘ HematiteFe2O3
Feⓘ IsoferroplatinumPt3Fe
Feⓘ PyriteFeS2
Feⓘ TetraferroplatinumPtFe
CuCopper
Cuⓘ BorniteCu5FeS4
Cuⓘ ChalcopyriteCuFeS2
Cuⓘ ChalcociteCu2S
Cuⓘ CovelliteCuS
Cuⓘ MalachiteCu2(CO3)(OH)2
Cuⓘ Tetrahedrite SubgroupCu6(Cu4C22+)Sb4S12S
ZnZinc
Znⓘ SphaleriteZnS
AsArsenic
Asⓘ ArsenopyriteFeAsS
Asⓘ ProustiteAg3AsS3
SrStrontium
Srⓘ Todorokite(Na,Ca,K,Ba,Sr)1-x(Mn,Mg,Al)6O12 · 3-4H2O
RuRuthenium
Ruⓘ Native Iridium(Ir,Os,Ru)
Ruⓘ Native Osmium(Os,Ir,Ru)
Ruⓘ Native Ruthenium(Ru,Ir)
AgSilver
Agⓘ AcanthiteAg2S
Agⓘ ProustiteAg3AsS3
Agⓘ PyrargyriteAg3SbS3
SbAntimony
Sbⓘ PyrargyriteAg3SbS3
Sbⓘ Tetrahedrite SubgroupCu6(Cu4C22+)Sb4S12S
BaBarium
Baⓘ BaryteBaSO4
Baⓘ Todorokite(Na,Ca,K,Ba,Sr)1-x(Mn,Mg,Al)6O12 · 3-4H2O
OsOsmium
Osⓘ Native Iridium(Ir,Os,Ru)
Osⓘ Native Osmium(Os,Ir,Ru)
IrIridium
Irⓘ Native Iridium(Ir,Os,Ru)
Irⓘ Native Osmium(Os,Ir,Ru)
Irⓘ Native Ruthenium(Ru,Ir)
PtPlatinum
Ptⓘ CooperitePtS
Ptⓘ IsoferroplatinumPt3Fe
Ptⓘ Native PlatinumPt
Ptⓘ TetraferroplatinumPtFe
AuGold
Auⓘ Native GoldAu
PbLead
Pbⓘ GalenaPbS

Localities in this Region

USA
USA

Other Regions, Features and Areas containing this locality

North AmericaContinent
North America PlateTectonic Plate
USA

This page contains all mineral locality references listed on mindat.org. This does not claim to be a complete list. If you know of more minerals from this site, please register so you can add to our database. This locality information is for reference purposes only. You should never attempt to visit any sites listed in mindat.org without first ensuring that you have the permission of the land and/or mineral rights holders for access and that you are aware of all safety precautions necessary.
Quick NavTopCommoditiesMineral ListRock TypesLocalities in RegionOther Regions
 
and/or  
Mindat.org® is an outreach project of the Hudson Institute of Mineralogy, a 501(c)(3) not-for-profit organization. Mindat® and mindat.org® are registered trademarks of the Hudson Institute of Mineralogy.
Copyright © mindat.org and the Hudson Institute of Mineralogy 1993-2026, except where stated. Most political location boundaries are © OpenStreetMap contributors. Mindat.org relies on the contributions of thousands of members and supporters. Founded in 2000 by Jolyon Ralph and Ida Chau.
Content on this site may not be used to train, fine-tune, or otherwise develop artificial intelligence or machine learning models without prior written permission - see our Terms & Conditions.
To cite: Ralph, J., Von Bargen, D., Martynov, P., Zhang, J., Que, X., Prabhu, A., Morrison, S. M., Li, W., Chen, W., & Ma, X. (2025). Mindat.org: The open access mineralogy database to accelerate data-intensive geoscience research. American Mineralogist, 110(6), 833–844. doi:10.2138/am-2024-9486.
Privacy Policy - Terms & Conditions - Contact Us / DMCA issues - Report a bug/vulnerability Current server date and time: September 4, 2026 14:30:40 Page updated: July 25, 2026 14:23:26
Go to top of page