Vote for your favorite mineral in #MinCup26! - Azurite vs. Smithsonite
It's carbonate-vs-carbonate to kick off Mineral Cup 2026 with copper-rich Azurite against zinc-rich Smithsonite.
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

Drechslerite

A valid IMA mineral species - pending publication
This page is currently not sponsored. Click here to sponsor this page.
02404990017461117341796.jpg
Drechslerite

Lengenbach Quarry, Fäld, Binn, Goms, Valais, Switzerland
02141160017272473268160.jpg
Drechslerite

Lengenbach Quarry, Fäld, Binn, Goms, Valais, Switzerland
02404990017461117341796.jpg
Drechslerite

Lengenbach Quarry, Fäld, Binn, Goms, Valais, Switzerland
02141160017272473268160.jpg
Drechslerite

Lengenbach Quarry, Fäld, Binn, Goms, Valais, Switzerland
02404990017461117341796.jpg
Drechslerite

Lengenbach Quarry, Fäld, Binn, Goms, Valais, Switzerland
02141160017272473268160.jpg
Drechslerite

Lengenbach Quarry, Fäld, Binn, Goms, Valais, Switzerland
Hide all sections | Show all sections

About DrechsleriteHide

05425800017490297139646.jpg
Eva Drechsler
Formula:
Tl4(Sb4-xAsx)S8 (1 < x < 2)
Crystal System:
Triclinic
Name:
Named after Dr. Eva Drechsler (1947, Vienna, Austria - ), freelance journalist, publicist, and editor; member of the Basel section of the Swiss Association of Prospectors, Mineral, and Fossil Collectors (Schweizerischen Verein der Strahler, Mineralien- und Fossiliensammler - SVSMF); vice-president of the international collectors' club Friends of Lengenbach (Verein Freunde Lengenbach - VFL); co-founding president and secretary/board member of the Lengenbach Research Association (Forschungsgemeinschaft Lengenbach - FGL).

Source: https://www.zobodat.at/pdf/OOE-GEO_35_0003-0005.pdf
Related to lorándite (TlAsS2, monoclinic) and weissbergite (TlSbS2, triclinic).

Sb and As are ordered in the crystal structure.

Also compare jankovićite, gillulyite, pierrotite; and gungerite.


Unique IdentifiersHide

Mindat ID:
54027
Long-form identifier:
mindat:1:1:54027:6

IMA Classification of DrechsleriteHide

IMA status:
Approved, Pending publication
IMA Formula:
Tl1+4(Sb3+4-xAs3+x)S2-8 (1 < x < 2)

Classification of DrechsleriteHide

Strunz-mindat (2026):
2.HD.70

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

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

Chemistry of DrechsleriteHide

Mindat Formula:
Tl4(Sb4-xAsx)S8 (1 < x < 2)
Elements listed:
As, S, Sb, Tl - search for minerals with similar chemistry

Crystallography of DrechsleriteHide

Crystal System:
Triclinic
Class (H-M):
1 - Pedial
Space Group:
P1
Cell Parameters:
a = 6.041(1) Å, b = 6.166(1) Å, c = 11.573(2) Å
α = 100.89(3)°, β = 99.17(3)°, γ = 104.54(3)°
Ratio:
a:b:c = 0.98 : 1 : 1.877
Unit Cell V:
399.95 ų (Calculated from Unit Cell)

X-Ray Powder DiffractionHide

Powder Diffraction Data:
d-spacingIntensity
3.613 Å(89)
3.605 Å(72)
3.495 Å(81)
2.917 Å(77)
2.898 Å(100)
2.773 Å(76)
2.296 Å(50)
2.248 Å(66)
Locality:
Lengenbach Quarry, Fäld, Binn, Goms, Valais, Switzerland

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 DrechsleriteHide

Type Locality:
ⓘ Lengenbach Quarry, Fäld, Binn, Goms, Valais, Switzerland
Place of Conservation of Type Material:
mineralogical collections of the Natural History Museum Vienna, Burgring 7, 1010 Wien, Austria, specimen number O1181 (holotype), and the Natural History Museum Basel, Augustinergasse 2, 4051 Basel, Switzerland, specimen number S209 (cotype)

Other Language Names for DrechsleriteHide

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.35EdenharteritePbTlAs3S6Orth. mm2 : Fdd2
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

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 DrechsleriteHide

References for DrechsleriteHide

Localities for DrechsleriteHide

Showing 2 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.
Russia
 
  • Sverdlovsk Oblast
    • Serovsky District
      • Turya river
        • Tur'insk
Kasatkin et al. (2020) +1 other reference
Switzerland (TL)
 
  • Valais
    • Goms
      • Binn
        • Fäld
see also: ... +1 other reference
Quick NavTopAbout DrechsleriteUnique IdentifiersIMA Classification Classification Mineral SymbolsChemistry Crystallography X-Ray Powder DiffractionGeological EnvironmentType Occurrence Other LanguagesStrunz-MindatOther 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 1, 2026 11:13:28 Page updated: August 19, 2026 00:46:39
Go to top of page