Vote for your favorite mineral in #MinCup26! - Cuprite vs. Halite
While externally similar shapes, these two minerals are very different inside.
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

UM1984-26-S:BiPb

This page is currently not sponsored. Click here to sponsor this page.
Formula:
Pb2Bi3S7
Colour:
dark gray
Lustre:
Metallic, Dull
One of many Pb-Bi-S minerals known (compare, e.g., cosalite).

Found in quartz veins that also contain 'UM1984-23-S:BiCuPb'. Forms irregular to tabular deposits, up to 1 x 2.5 mm in size. Associated minerals include chalcopyrite, bismuth, 'joséite-A', and 'joséite-B'.


Hide all sections | Show all sections

Unique IdentifiersHide

Mindat ID:
47765
Long-form identifier:
mindat:1:1:47765:1

Similar NamesHide

Physical Properties of UM1984-26-S:BiPbHide

Lustre:
Metallic, Dull
Colour:
Dark gray
Hardness:
VHN50=100 (146) - 125 (192) kg/mm2 - Vickers
Cleavage:
Perfect
one direction

Optical Data of UM1984-26-S:BiPbHide

Anisotropism:
strong
Reflectivity:
WavelengthR1 (%)R2 (%)
590nm43.0%46.2%
460nm41.6%42.8%


Graph shows reflectance levels at different wavelengths (in nm). Peak reflectance is 46.2%.
R1 shown in black, R2 shown in red
Colour in reflected light:
grayish white with brownish tint

Chemistry of UM1984-26-S:BiPbHide

Mindat Formula:
Pb2Bi3S7
Element Weights:
Element% weight
Bi49.529 %
Pb32.738 %
S17.732 %

Calculated from ideal end-member formula.
Elements listed:
Bi, Pb, S - search for minerals with similar chemistry

X-Ray Powder DiffractionHide

Powder Diffraction Data:
d-spacingIntensity
3.56 Å(100)
3.42 Å(50)
3.33 Å(70)
3.20 Å(50)
3.11 Å(80)
2.96 Å(60)
Locality:
Kharbeisk deposit, Kharp, Priuralsky District, Yamalo-Nenets Autonomous Okrug, Russia
Comments:
reported to resemble that of bismuthinite

Other InformationHide

Health Risks:
No information on health risks for this material has been entered into the database. You should always treat mineral specimens with care.

Internet Links for UM1984-26-S:BiPbHide

References for UM1984-26-S:BiPbHide

Localities for UM1984-26-S:BiPbHide

This map shows a selection of localities that have latitude and longitude coordinates recorded. Click on the symbol to view information about a locality. The symbol next to localities in the list can be used to jump to that position on the map.

Locality ListHide

- This locality has map coordinates listed. - This locality has estimated coordinates. ⓘ - Click for references and further information on this occurrence. ? - Indicates mineral may be doubtful at this locality. - Good crystals or important locality for species. - World class for species or very significant. (TL) - Type Locality for a valid mineral species. (FRL) - First Recorded Locality for everything else (eg varieties). Struck out - Mineral was erroneously reported from this locality. Faded * - Never found at this locality but inferred to have existed at some point in the past (e.g. from pseudomorphs).

All localities listed without proper references should be considered as questionable.
Russia
 
  • Yamalo-Nenets Autonomous Okrug
    • Priuralsky District
      • Kharp
Litoshko et al. (1984) +1 other reference
Quick NavTopUnique IdentifiersSimilar NamesPhysical Properties Optical Data Chemistry X-Ray Powder DiffractionOther InformationInternet Links References Localities Locality List
 
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 29, 2026 02:45:39 Page updated: December 31, 2025 18:32:40
Go to top of page