Vote for your favorite mineral in #MinCup26! - Sphalerite vs. Anorthite
Both zinc ore Sphalerite and calcium plagioclase feldspar Anorthite have perfect cleavage that will split cleanly if you hit them with a hammer, but only one can claim a larger split of your votes!
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

Bear Valley District, San Bernardino County, California, USAi
Regional Level Types
Bear Valley DistrictMining District
San Bernardino CountyCounty
CaliforniaState
USACountry

This page is currently not sponsored. Click here to sponsor this page.
PhotosMapsSearchMineralogy
Latitude & Longitude (WGS84):
34° 18' 20'' North , 116° 51' 25'' West
Latitude & Longitude (decimal):
Mindat Locality ID:
27899
Long-form identifier:
mindat:1:2:27899:6
GUID (UUID V4):
0


The Bear Valley Mining District was formed in 1860 due to the abundance of gold and silver mining in the area. It is centered around the area N of Big Bear Lake and Big Bear City, along the northern margin of the San Bernardino Mountains, mostly N of Holcomb Valley.

NOTE: The geographic coordinates presented are arbitrary to a point in the approximate center of the district.

This District was also entered into Mindat as the "Big Bear" District. This was done without any references supporting this name. There is no USGS MRDS database file for either the "Bear Valley" District or the "Big Bear" District. MRDS files that ascribe localities within the district to either/or of the named districts are listed as references in this file.

Clark (1970a) lists a part of this district as the "Holcomb Valley District" and states as follows:

Holcomb Valley is on the north side of the San Bernardino Mountains just north of Big Bear Lake. Placer deposits were discovered here in 1860 by W. F. Holcomb and were extensively worked for a few years following, mostly by Mexicans. The area has been intermittently prospected ever since. From 1933 to 1941 about 200,000 cubic yards were mined by power shovel, with an average recovery of 38 cents (period values) per yard. The gold-bearing material consists of Recent and older alluvium. There are a number of small lode-gold prospects. The gold occurs in thin shear and fracture zones in granitic rocks or in contacts between carbonate and intrusive rocks.

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

26 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:

Andradite
Formula: Ca3Fe3+2(SiO4)3
Aragonite
Formula: CaCO3
Axinite-(Mn)
Formula: Ca2Mn2+Al2BSi4O15(OH)
Calcite
Formula: CaCO3
Cerussite
Formula: PbCO3
Chalcopyrite
Formula: CuFeS2
'Clay minerals'
Epidote
Formula: (CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH)
Fluorapatite
Formula: Ca5(PO4)3F
Fluorapatite var. Manganese-bearing Fluorapatite
Formula: (Ca,Mn2+)5(PO4)3(F,Cl,OH) or Ca5([P,Mn5+]O4)3(F,Cl,OH)
Franklinite
Formula: Zn2+Fe3+2O4
Galena
Formula: PbS
Grossular
Formula: Ca3Al2(SiO4)3
Hardystonite
Formula: Ca2Zn[Si2O7]
Hematite
Formula: Fe2O3
Hetaerolite
Formula: ZnMn2O4
'Limonite'
Magnetite
Formula: Fe2+Fe3+2O4
'Manganese Oxides'
Microcline
Formula: K(AlSi3O8)
Native Copper
Formula: Cu
Native Gold
Formula: Au
Localities: Reported from at least 14 localities in this region.
Pyrite
Formula: FeS2
Quartz
Formula: SiO2
Localities: Reported from at least 14 localities in this region.
Sphalerite
Formula: ZnS
Tremolite
Formula: ◻Ca2Mg5(Si8O22)(OH)2
Description: Gold-bearing.
Uraninite
Formula: UO2
Description: Occurs in a pod-like mass of metallic sulfides in limestone.
Willemite
Formula: Zn2SiO4
Wollastonite
Formula: Ca3(Si3O9)
Zincite
Formula: ZnO

List of minerals arranged by Strunz 10th Edition classification

Group 1 - Elements
Native Copper1.AA.05Cu
Native Gold1.AA.05Au
Group 2 - Sulphides and Sulfosalts
Sphalerite2.CB.05aZnS
Chalcopyrite2.CB.10aCuFeS2
Galena2.CD.10PbS
Pyrite2.EB.05aFeS2
Group 4 - Oxides and Hydroxides
Zincite4.AB.20ZnO
Franklinite4.BB.05Zn2+Fe3+2O4
Magnetite4.BB.05Fe2+Fe3+2O4
Hetaerolite4.BB.10ZnMn2O4
Hematite4.CB.05Fe2O3
Quartz4.DA.05SiO2
Uraninite4.DL.05UO2
Group 5 - Nitrates and Carbonates
Calcite5.AB.05CaCO3
Aragonite5.AB.15CaCO3
Cerussite5.AB.15PbCO3
Group 8 - Phosphates, Arsenates and Vanadates
Fluorapatite8.BN.05Ca5(PO4)3F
var. Manganese-bearing Fluorapatite8.BN.05(Ca,Mn2+)5(PO4)3(F,Cl,OH) or Ca5([P,Mn5+]O4)3(F,Cl,OH)
Group 9 - Silicates
Willemite9.AA.05Zn2SiO4
Andradite9.AD.25Ca3Fe3+2(SiO4)3
Grossular9.AD.25Ca3Al2(SiO4)3
Hardystonite9.BB.10Ca2Zn[Si2O7]
Axinite-(Mn)9.BD.20Ca2Mn2+Al2BSi4O15(OH)
Epidote9.BG.05a(CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH)
Tremolite9.DE.10◻Ca2Mg5(Si8O22)(OH)2
Wollastonite9.DG.05Ca3(Si3O9)
Microcline9.FA.30K(AlSi3O8)
Unclassified
'Clay minerals'-
'Limonite'-
'Manganese Oxides'-

List of minerals for each chemical element

HHydrogen
H Epidote(CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH)
H Axinite-(Mn)Ca2Mn2+Al2BSi4O15(OH)
H Fluorapatite var. Manganese-bearing Fluorapatite(Ca,Mn2+)5(PO4)3(F,Cl,OH) or Ca5([P,Mn5+]O4)3(F,Cl,OH)
H Tremolite◻Ca2Mg5(Si8O22)(OH)2
BBoron
B Axinite-(Mn)Ca2Mn2+Al2BSi4O15(OH)
CCarbon
C AragoniteCaCO3
C CalciteCaCO3
C CerussitePbCO3
OOxygen
O AndraditeCa3Fe23+(SiO4)3
O AragoniteCaCO3
O CalciteCaCO3
O CerussitePbCO3
O Epidote(CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH)
O FluorapatiteCa5(PO4)3F
O FrankliniteZn2+Fe23+O4
O GrossularCa3Al2(SiO4)3
O HardystoniteCa2Zn[Si2O7]
O HematiteFe2O3
O HetaeroliteZnMn2O4
O Axinite-(Mn)Ca2Mn2+Al2BSi4O15(OH)
O MagnetiteFe2+Fe23+O4
O Fluorapatite var. Manganese-bearing Fluorapatite(Ca,Mn2+)5(PO4)3(F,Cl,OH) or Ca5([P,Mn5+]O4)3(F,Cl,OH)
O MicroclineK(AlSi3O8)
O QuartzSiO2
O Tremolite◻Ca2Mg5(Si8O22)(OH)2
O UraniniteUO2
O WillemiteZn2SiO4
O WollastoniteCa3(Si3O9)
O ZinciteZnO
FFluorine
F FluorapatiteCa5(PO4)3F
F Fluorapatite var. Manganese-bearing Fluorapatite(Ca,Mn2+)5(PO4)3(F,Cl,OH) or Ca5([P,Mn5+]O4)3(F,Cl,OH)
MgMagnesium
Mg Tremolite◻Ca2Mg5(Si8O22)(OH)2
AlAluminium
Al Epidote(CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH)
Al GrossularCa3Al2(SiO4)3
Al Axinite-(Mn)Ca2Mn2+Al2BSi4O15(OH)
Al MicroclineK(AlSi3O8)
SiSilicon
Si AndraditeCa3Fe23+(SiO4)3
Si Epidote(CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH)
Si GrossularCa3Al2(SiO4)3
Si HardystoniteCa2Zn[Si2O7]
Si Axinite-(Mn)Ca2Mn2+Al2BSi4O15(OH)
Si MicroclineK(AlSi3O8)
Si QuartzSiO2
Si Tremolite◻Ca2Mg5(Si8O22)(OH)2
Si WillemiteZn2SiO4
Si WollastoniteCa3(Si3O9)
PPhosphorus
P FluorapatiteCa5(PO4)3F
P Fluorapatite var. Manganese-bearing Fluorapatite(Ca,Mn2+)5(PO4)3(F,Cl,OH) or Ca5([P,Mn5+]O4)3(F,Cl,OH)
SSulfur
S ChalcopyriteCuFeS2
S GalenaPbS
S PyriteFeS2
S SphaleriteZnS
ClChlorine
Cl Fluorapatite var. Manganese-bearing Fluorapatite(Ca,Mn2+)5(PO4)3(F,Cl,OH) or Ca5([P,Mn5+]O4)3(F,Cl,OH)
KPotassium
K MicroclineK(AlSi3O8)
CaCalcium
Ca AndraditeCa3Fe23+(SiO4)3
Ca AragoniteCaCO3
Ca CalciteCaCO3
Ca Epidote(CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH)
Ca FluorapatiteCa5(PO4)3F
Ca GrossularCa3Al2(SiO4)3
Ca HardystoniteCa2Zn[Si2O7]
Ca Axinite-(Mn)Ca2Mn2+Al2BSi4O15(OH)
Ca Fluorapatite var. Manganese-bearing Fluorapatite(Ca,Mn2+)5(PO4)3(F,Cl,OH) or Ca5([P,Mn5+]O4)3(F,Cl,OH)
Ca Tremolite◻Ca2Mg5(Si8O22)(OH)2
Ca WollastoniteCa3(Si3O9)
MnManganese
Mn HetaeroliteZnMn2O4
Mn Axinite-(Mn)Ca2Mn2+Al2BSi4O15(OH)
Mn Fluorapatite var. Manganese-bearing Fluorapatite(Ca,Mn2+)5(PO4)3(F,Cl,OH) or Ca5([P,Mn5+]O4)3(F,Cl,OH)
FeIron
Fe AndraditeCa3Fe23+(SiO4)3
Fe ChalcopyriteCuFeS2
Fe Epidote(CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH)
Fe FrankliniteZn2+Fe23+O4
Fe HematiteFe2O3
Fe MagnetiteFe2+Fe23+O4
Fe PyriteFeS2
CuCopper
Cu ChalcopyriteCuFeS2
Cu Native CopperCu
ZnZinc
Zn FrankliniteZn2+Fe23+O4
Zn HardystoniteCa2Zn[Si2O7]
Zn HetaeroliteZnMn2O4
Zn SphaleriteZnS
Zn WillemiteZn2SiO4
Zn ZinciteZnO
AuGold
Au Native GoldAu
PbLead
Pb CerussitePbCO3
Pb GalenaPbS
UUranium
U UraniniteUO2

Localities in this Region

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.

References

 
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 3, 2026 04:30:00 Page updated: July 24, 2026 04:18:35
Go to top of page