Vote for your favorite mineral in #MinCup26! - Arsenuranylite vs. Talc
It's a pair of soft and lovely minerals as Stichtite and Talc compete for 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

Jean Mine (Postmaster Mine), Riverside Mountain, Bendigo District (Riverside Mountain District), Riverside Mts (Siakariri), Riverside County, California, USAi
Regional Level Types
Jean Mine (Postmaster Mine)Mine
Riverside MountainMountain
Bendigo District (Riverside Mountain District)Mining District
Riverside Mts (Siakariri)Mountain Range
Riverside CountyCounty
CaliforniaState
USACountry

This page is currently not sponsored. Click here to sponsor this page.
PhotosMapsSearch
Latitude & Longitude (WGS84):
34° 2' 48'' North , 114° 32' 7'' West
Latitude & Longitude (decimal):
34.04694,-114.53555
GeoHash:
G#: 9qn99wjcb
GRN:
N23W68
Type:
Mine
Köppen climate type:
BWh : Hot deserts climate
Nearest Settlements:
PlacePopulationDistance
Poston285 (2011)14.3km
Big River1,327 (2011)19.1km
Parker3,046 (2017)25.4km
Bluewater172 (2011)28.1km
Bluewater725 (2011)28.3km
Mindat Locality ID:
87056
Long-form identifier:
mindat:1:2:87056:3
GUID (UUID V4):
0


A former Au-Ag occurrence/mine located in the SW¼NE¼NW¼ sec. 35, T1S, R23E, SBM, about 4.6 km NNW of Riverside Mountain (summit). MRDS database stated accuracy for this location is 10 meters.

Local rocks include Precambrian igneous and metamorphic rock complex.

Workings include unspecified surface and underground openings (the topo map reflects 1 shaft symbol labeled "Jean Mine" at this point plus 1 shaft symbol and 1 prospect pit symbol about 200-250 meters ENE of it).

Select Mineral List Type

Standard Detailed Gallery Strunz Chemical Elements

Mineral List


2 valid minerals.

Gallery:

List of minerals arranged by Strunz 10th Edition classification

Group 1 - Elements
ⓘNative Gold1.AA.05Au
Group 2 - Sulphides and Sulfosalts
ⓘChalcopyrite2.CB.10aCuFeS2

List of minerals for each chemical element

SSulfur
Sⓘ ChalcopyriteCuFeS2
FeIron
Feⓘ ChalcopyriteCuFeS2
CuCopper
Cuⓘ ChalcopyriteCuFeS2
AuGold
Auⓘ Native GoldAu

Other Databases

Link to USGS MRDS:10116084

Other Regions, Features and Areas containing this locality

North AmericaContinent
North America PlateTectonic Plate

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

U.S. Bureau of Mines Minerals Availability System/Mineral Industry Location System (MAS/MILS): file #0060650333.
California Division of Mines and Geology Open-File Report 77-14 (1977): 458-460.
U.S. Bureau of Mines Open-File Report MLA 142-82 (1982): No. 4, Table 1: p. 7 & Pl. 1B.
California Division of Mines and Geology (1988), Mineral Land Classification of the Whipple Mountains & Riverside Mountains Study Area, San Bernardino & Riverside Counties, California, Open File Report 88-20.
(2005) Mineral Resources Data System (MRDS), US Geological Survey.
Quick NavTopMineral ListOther DatabasesOther RegionsReferences
 
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 8, 2026 02:09:23 Page updated: August 10, 2025 16:00:44
Go to top of page