Vote for your favorite mineral in #MinCup26! - Erythrite vs. Skutterudite
Pretty pink and poisonous Erythrite is against its shiny silver and structurally-useful Skutterudite.
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

Edenharterite

A valid IMA mineral species
This page is currently not sponsored. Click here to sponsor this page.
Hide all sections | Show all sections

About EdenharteriteHide

Formula:
PbTlAs3S6
Colour:
Brownish-black
Hardness:
2½ - 3
Specific Gravity:
5.09 (Calculated)
Crystal System:
Orthorhombic
Name:
Named in honor of Andreas Edenharter (1933 – ), University of Göttingen, Germany, who first synthesized the material while conducting hydrothermal experiments with Tl-sulphosalts.
This page provides mineralogical data about Edenharterite.


Unique IdentifiersHide

Mindat ID:
1350
Long-form identifier:
mindat:1:1:1350:1

IMA Classification of EdenharteriteHide

Classification of EdenharteriteHide

2.HD.35

2 : SULFIDES and SULFOSALTS (sulfides, selenides, tellurides; arsenides, antimonides, bismuthides; sulfarsenites, sulfantimonites, sulfbismuthites, etc.)
H : Sulfosalts of SnS archetype
D : With Tl
3.7.10.2

3 : SULFOSALTS
7 : ø = 2

Mineral SymbolsHide

As of 2021 there are now IMA–CNMNC approved mineral symbols (abbreviations) for each mineral species, useful for tables and diagrams.

SymbolSourceReference for Standard
EhtIMA–CNMNCWarr, L.N. (2021). IMA–CNMNC approved mineral symbols. Mineralogical Magazine, 85(3), 291-320. doi:10.1180/mgm.2021.43

Physical Properties of EdenharteriteHide

Transparency:
Translucent, Opaque
Colour:
Brownish-black
Streak:
Red
Hardness:
2½ - 3 on Mohs scale
Hardness:
VHN25=95 - 101 kg/mm2 - Vickers
Cleavage:
Distinct/Good
One, parallel to {001}
Fracture:
Irregular/Uneven
Density:
5.09 g/cm3 (Calculated)

Optical Data of EdenharteriteHide

Type:
Biaxial
Anisotropism:
Very weak
Reflectivity:
WavelengthR1 (%)R2 (%)
480nm28.5%30.5%
546nm28.5%31.5%
589nm27.0%28.5%
656nm27.0%29.0%


Graph shows reflectance levels at different wavelengths (in nm). Peak reflectance is 31.5%.
R1 shown in black, R2 shown in red
Colour in reflected light:
Grayish white with bluish tint
Internal Reflections:
Bright red

Chemistry of EdenharteriteHide

Mindat Formula:
PbTlAs3S6
Element Weights:
Element% weight
As27.121 %
Pb25.002 %
Tl24.662 %
S23.215 %

Calculated from ideal end-member formula.
Common Impurities:
Sn

Crystallography of EdenharteriteHide

Crystal System:
Orthorhombic
Class (H-M):
mm2 - Pyramidal
Space Group:
Fdd2
Cell Parameters:
a = 15.46 Å, b = 47.5 Å, c = 5.84 Å
Ratio:
a:b:c = 0.325 : 1 : 0.123
Unit Cell V:
4,288.60 ų (Calculated from Unit Cell)
Z:
16

Crystal StructureHide

Load
Unit Cell | Unit Cell Packed
2x2x2 | 3x3x3 | 4x4x4
Show
Big Balls | Small Balls | Just Balls | Spacefill
Polyhedra Off | Si Polyhedra | All Polyhedra
Remove metal-metal sticks
Display Options
Black Background | White Background
Perspective On | Perspective Off
2D | Stereo | Red-Blue | Red-Cyan
View
CIF File    Best | x | y | z | a | b | c
Rotation
Stop | Start
Labels
Console Off | On | Grey | Yellow
IDSpeciesReferenceLinkYearLocalityPressure (GPa)Temp (K)
0015410EdenharteriteBerlepsch P (1996) Crystal structure and crystal chemistry of the homeotypes edenharterite (TlPbAs3S6) and jentschite (TlPbAs2SbS6) from Lengenbach, Binntal (Switzerland) Schweizerische Mineralogische und Petrographische Mitteilungen 76 147-1571996Lengenbach quarry, Binntal, Valais, Switzerland0293
0010861EdenharteriteBalic-Zunic T, Engel P (1983) Crystal structure of synthetic PbTlAs3S6 Zeitschrift fur Kristallographie 165 261-2691983synthetic0293
CIF Raw Data - click here to close

X-Ray Powder DiffractionHide

Geological EnvironmentHide

Paragenetic Mode(s):
Paragenetic ModeEarliest Age (Ga)
High-? alteration and/or metamorphism
33 : Minerals deposited by hydrothermal metal-rich fluids (see also [#12])

Type Occurrence of EdenharteriteHide

General Appearance of Type Material:
Crystals are lathlike.
Place of Conservation of Type Material:
Natural History Museum, Basel, Switzerland, L 18,393.
Geological Setting of Type Material:
Hydrothermal deposit in dolostone.
Associated Minerals at Type Locality:

Synonyms of EdenharteriteHide

Other Language Names for EdenharteriteHide

Common AssociatesHide

Associations Based on Photo Data:
8 photos of Edenharterite associated with RealgarAs4S4
5 photos of Edenharterite associated with PyriteFeS2
3 photos of Edenharterite associated with SartoritePbAs2S4
3 photos of Edenharterite associated with PararealgarAs4S4
3 photos of Edenharterite associated with DolomiteCaMg(CO3)2
3 photos of Edenharterite associated with Wallisite(Cu,Ag)TlPbAs2S5
2 photos of Edenharterite associated with OrpimentAs2S3
1 photo of Edenharterite associated with CalciteCaCO3

Related Minerals - Strunz-mindat GroupingHide

2.HD.EnneasartoriteTl6Pb32As70S140Mon. 2/m : P21/b
2.HD.ShimeniteTl5Sb21-yAsyS34Tric. 1 : P1
2.HD.DewititeAgzTl10-x-zPb2xSb42-x-yAsyS68Tric. 1 : P1
2.HD.BuyniteTlPb14As17S40Mon. 2 : P21
2.HD.VallouiseiteAg3Tl21.5PbSb63As41.5S170Tric. 1 : P1
2.HD.GiuşcăiteAg2Tl4Pb4As20Sb2S40Mon. m
2.HD.BoscardiniteTlPb4(Sb7As2)S18Tric. 1 : P1
2.HD.GungeriteTlAs5Sb4S13Orth. mmm(2/m2/m2/m) : Pbcn
2.HD.05eDalnegroite(Tl4Pb2)(As12Sb8)S34Tric. 1 : P1
2.HD.05LoránditeTlAsS2Mon. 2/m : P21/b
2.HD.05WeissbergiteTlSbS2Tric. 1 : P1
2.HD.05eChabournéiteAgzTl8-x-zPb4+2xSb40-x-yAsyS68 with 0.00 < x < 0.40(9), 16.15(3)< y < 19.11(10), 0.04(4) < z < 0.11(6)Tric. 1 : P1
2.HD.15ChristiteTlHgAsS3Orth. mmm(2/m2/m2/m) : Cmca
2.HD.15MarkwelchiteTlPbSbS3Mon. 2/m : P21/b
2.HD.15RichardsollyiteTlPbAsS3Mon. 2/m : P21/b
2.HD.20JankovićiteTl5Sb9(As,Sb)4S22Tric. 1 : P1
2.HD.25RebuliteTl5Sb5As8S22Mon. 2/m : P21/b
2.HD.30ImhofiteTl5.8As15.4S26Mon. 2/m
2.HD.40JentschiteTlPbAs2SbS6Mon. 2/m
2.HD.45ProtochabournéiteTl4-xPb2+2xSb20-x-yAsyS34 with 0.02(2) <= x <= 0.34(2), 5.71(9) <= y <= 6.69(9)Tric. 1 : P1
2.HD.45HutchinsoniteTlPbAs5S9Orth. mmm(2/m2/m2/m) : Pbca
2.HD.50BernarditeTlAs5S8Mon. 2/m : P21/b
2.HD.55SicheriteTlAg2(As,Sb)3S6Orth.
2.HD.55GeueriteAg2Tl4Pb4As22S40Mon. 2/m : P21/b
2.HD.60GabrieliteTl6Ag3Cu6(As,Sb)9S21Tric. 1 : P1
2.HD.65TsygankoiteMn8Tl8Hg2(Sb21Pb2Tl)S48Mon. 2/m : B2/m
2.HD.70DrechsleriteTl4(Sb4-xAsx)S8 (1 < x < 2)Tric. 1 : P1

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 EdenharteriteHide

References for EdenharteriteHide

Localities for EdenharteriteHide

Showing 1 localities.

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.
Hide all sections | Show all sections

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.
Switzerland (TL)
 
  • Valais
    • Goms
      • Binn
        • Fäld
Graeser et al. (1992) +1 other reference
 
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 2, 2026 03:27:28 Page updated: August 19, 2026 01:06:18
Go to top of page