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Jentschite

A valid IMA mineral species

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Jentschite, etc.

Lengenbach Quarry, Fäld, Binn, Goms, Valais, Switzerland

Jentschite, etc.

Lengenbach Quarry, Fäld, Binn, Goms, Valais, Switzerland

Jentschite, etc.

Lengenbach Quarry, Fäld, Binn, Goms, Valais, Switzerland

Jentschite, etc.

Lengenbach Quarry, Fäld, Binn, Goms, Valais, Switzerland

Jentschite, etc.

Lengenbach Quarry, Fäld, Binn, Goms, Valais, Switzerland

Jentschite, etc.

Lengenbach Quarry, Fäld, Binn, Goms, Valais, Switzerland

Jentschite, etc.

Lengenbach Quarry, Fäld, Binn, Goms, Valais, Switzerland

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About JentschiteHide

Formula:

TlPbAs₂SbS₆

Colour:

Black

Lustre:

Metallic, Sub-Metallic

Hardness:

2 - 2½

Specific Gravity:

5.24 (Calculated)

Crystal System:

Monoclinic

Name:

The name honours Franz Jentsch (1868–1908), an early prolific collector of Lengenbach minerals.

Type Locality:

ⓘ Lengenbach Quarry, Fäld, Binn, Goms, Valais, Switzerland

This page provides mineralogical data about Jentschite.

Unique IdentifiersHide

Mindat ID:

5745

Long-form identifier:

mindat:1:1:5745:1

Similar NamesHide

Jenzschite (of Dana)

IMA Classification of JentschiteHide

IMA status:

Approved

IMA Formula:

Pb²⁺Tl¹⁺As³⁺₂Sb³⁺S^2-₆

Approval year:

1993

First published:

1997

Type description reference:

Graeser, Stefan, Edenharter, Andreas (1997) Jentschite (TlPbAs₂SbS₆) – a new sulphosalt mineral from Lengenbach, Binntal (Switzerland) Mineralogical Magazine, 61 (404) 131-137 doi:10.1180/minmag.1997.061.404.13

Classification of JentschiteHide

Strunz-mindat (2026):

2.HD.40

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.

Symbol	Source	Reference for Standard
Jts	IMA–CNMNC	Warr, L.N. (2021). IMA–CNMNC approved mineral symbols. Mineralogical Magazine, 85(3), 291-320. doi:10.1180/mgm.2021.43

Physical Properties of JentschiteHide

Lustre:

Metallic, Sub-Metallic

Colour:

Black

Streak:

Dark red

Hardness:

2 - 2½ on Mohs scale

Hardness:

VHN₁₀=38 - 51 kg/mm² - Vickers

Tenacity:

Very brittle

Cleavage:

Perfect
On {101}

Density:

5.24 g/cm³ (Calculated)

Optical Data of JentschiteHide

Anisotropism:

Distinct

Reflectivity:

Wavelength	R₁ (%)	R₂ (%)
470nm	29.7%	35.4%
543nm	28.8%	33.1%
587nm	26.7%	30.3%
657nm	26.6%	29.9%

Graph shows reflectance levels at different wavelengths (in nm). Peak reflectance is 35.4%.
R₁ shown in black, R₂ shown in red

Colour in reflected light:

Pale gray

Chemistry of JentschiteHide

Mindat Formula:

TlPbAs₂SbS₆

Element Weights:

Element	% weight
Pb	23.664 %
Tl	23.343 %
S	21.973 %
As	17.114 %
Sb	13.906 %

Calculated from ideal end-member formula.

Elements listed:

As, Pb, S, Sb, Tl - search for minerals with similar chemistry

Crystallography of JentschiteHide

Crystal System:

Monoclinic

Class (H-M):

2/m - Prismatic

Cell Parameters:

a = 8.0958(5) Å, b = 23.917(2) Å, c = 5.8876(5) Å
β = 108.063(8)°

Ratio:

a:b:c = 0.338 : 1 : 0.246

Unit Cell V:

1,083.82 Å³ (Calculated from Unit Cell)

Comment:

Space-group setting P21/n.

Crystal StructureHide

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Data courtesy of the American Mineralogist Crystal Structure Database. Click on an AMCSD ID to view structure

ID	Species	Reference	Link	Year	Locality	Pressure (GPa)	Temp (K)
0015411	Jentschite	Berlepsch P (1996) Crystal structure and crystal chemistry of the homeotypes edenharterite (TlPbAs3S6) and jentschite (TlPbAs2SbS6) from Lengenbach, Binntal (Switzerland) Schweizerische Mineralogische und Petrographische Mitteilungen 76 147-157		1996	Lengenbach quarry, Binntal, Valais, Switzerland	0	293

CIF Raw Data - click here to close

data_global
_chemical_name_mineral 'Jentschite'
loop_
_publ_author_name
'Berlepsch P'
_journal_name_full 'Schweizerische Mineralogische und Petrographische Mitteilungen'
_journal_volume 76 
_journal_year 1996
_journal_page_first 147
_journal_page_last 157
_publ_section_title
;
 Crystal structure and crystal chemistry of the homeotypes edenharterite
 (TlPbAs3S6) and jentschite (TlPbAs2SbS6) from Lengenbach, Binntal (Switzerland)
;
_database_code_amcsd 0015411
_chemical_compound_source 'Lengenbach quarry, Binntal, Valais, Switzerland'
_chemical_formula_sum 'Tl Pb Sb.55 As2.45 S6'
_cell_length_a 8.0958
_cell_length_b 23.917
_cell_length_c 5.8876
_cell_angle_alpha 90
_cell_angle_beta 108.063
_cell_angle_gamma 90
_cell_volume 1083.816
_exptl_crystal_density_diffrn      5.237
_symmetry_space_group_name_H-M 'P 1 21/n 1'
loop_
_space_group_symop_operation_xyz
  'x,y,z'
  '1/2+x,1/2-y,1/2+z'
  '1/2-x,1/2+y,1/2-z'
  '-x,-y,-z'
loop_
_atom_site_label
_atom_site_fract_x
_atom_site_fract_y
_atom_site_fract_z
_atom_site_occupancy
_atom_site_U_iso_or_equiv
Tl   0.09640   0.06125   0.85970   1.00000   0.03440
Pb   0.05860   0.25436   0.91450   1.00000   0.01950
Sb  -0.46250   0.07058   0.48960   0.55000   0.01950
As1  -0.46250   0.07058   0.48960   0.45000   0.01950
As2  -0.31260   0.15277   0.03540   1.00000   0.01500
As3   0.09660   0.16492   0.44500   1.00000   0.01880
S1   0.27840   0.01220   0.39200   1.00000   0.02210
S2   0.49080   0.08390   0.86900   1.00000   0.02440
S3  -0.20970   0.16370   0.72830   1.00000   0.01820
S4  -0.09760   0.09440   0.25700   1.00000   0.01840
S5   0.27320   0.16340   0.22000   1.00000   0.01910
S6  -0.06120   0.24260   0.30800   1.00000   0.01630
loop_
_atom_site_aniso_label
_atom_site_aniso_U_11
_atom_site_aniso_U_22
_atom_site_aniso_U_33
_atom_site_aniso_U_12
_atom_site_aniso_U_13
_atom_site_aniso_U_23
Tl 0.03920 0.03040 0.03980 -0.00570 0.01640 0.00310
Pb 0.02790 0.01300 0.02660 -0.00100 0.01490 0.00000
Sb 0.02200 0.01390 0.03000 0.00400 0.00860 -0.00620
As1 0.02200 0.01390 0.03000 0.00400 0.00860 -0.00620
As2 0.01900 0.01000 0.02400 0.00050 0.01160 -0.02900
As3 0.02400 0.01500 0.02200 0.00010 0.01200 0.00090
S1 0.02200 0.01300 0.03800 -0.00200 0.00800 0.00000
S2 0.03100 0.02700 0.03200 -0.01300 0.02000 -0.00800
S3 0.02300 0.01400 0.02600 -0.00200 0.01400 0.00000
S4 0.02400 0.01100 0.02900 0.00100 0.01200 0.00500
S5 0.02100 0.01300 0.03500 -0.00100 0.01500 -0.00200
S6 0.02500 0.00900 0.03200 -0.00100 0.01900 -0.00200

X-Ray Powder DiffractionHide

Powder Diffraction Data:

d-spacing	Intensity
2.823 Å	(100)
3.587 Å	(86)
2.778 Å	(84)
3.998 Å	(74)
2.670 Å	(58)
3.816 Å	(54)
5.346 Å	(32)

Geological EnvironmentHide

Paragenetic Mode(s):

Paragenetic Mode	Earliest Age (Ga)
Near-surface Processes
23 : Subaerial aqueous alteration by non-redox-sensitive fluids (see also #47)
High-? alteration and/or metamorphism
33 : Minerals deposited by hydrothermal metal-rich fluids (see also [#12])

Type Occurrence of JentschiteHide

Type Locality:

ⓘ Lengenbach Quarry, Fäld, Binn, Goms, Valais, Switzerland

Place of Conservation of Type Material:

Natural History Museum; Mineralogical Institute, University of Basel, Basel, Switzerland.

Geological Setting of Type Material:

Hydrothermal

Associated Minerals at Type Locality:

Bernardite	Edenharterite	'Hatchite-Wallisite Series'	Hutchinsonite	Orpiment
Realgar

Reference:

Synonyms of JentschiteHide

IMA1993-025

Other Language Names for JentschiteHide

Dutch:Jentschiet

German:Jentschit

Simplified Chinese:辉砷银铅矿

Spanish:Jentschita

Common AssociatesHide

Associations Based on Photo Data:

4 photos of Jentschite associated with Realgar	As₄S₄
1 photo of Jentschite associated with Dolomite	CaMg(CO₃)₂
1 photo of Jentschite associated with Nowackiite	Cu₆Zn₃As₄S₁₂
1 photo of Jentschite associated with Sphalerite	ZnS

Related Minerals - Strunz-mindat Grouping Hide

2.HD.	Enneasartorite	Tl₆Pb₃₂As₇₀S₁₄₀	Mon. 2/m : P2₁/b
2.HD.	Shimenite	Tl₅Sb_21-yAs_yS₃₄	Tric. 1 : P1
2.HD.	Dewitite	Ag_zTl_10-x-zPb_2xSb_42-x-yAs_yS₆₈	Tric. 1 : P1
2.HD.	Buynite	TlPb₁₄As₁₇S₄₀	Mon. 2 : P2₁
2.HD.	Vallouiseite	Ag₃Tl_21.5PbSb₆₃As_41.5S₁₇₀	Tric. 1 : P1
2.HD.	Giuşcăite	Ag₂Tl₄Pb₄As₂₀Sb₂S₄₀	Mon. m
2.HD.	Boscardinite	TlPb₄(Sb₇As₂)S₁₈	Tric. 1 : P1
2.HD.	Gungerite	TlAs₅Sb₄S₁₃	Orth. mmm(2/m2/m2/m) : Pbcn
2.HD.05e	Dalnegroite	(Tl₄Pb₂)(As₁₂Sb₈)S₃₄	Tric. 1 : P1
2.HD.05	Lorándite	TlAsS₂	Mon. 2/m : P2₁/b
2.HD.05	Weissbergite	TlSbS₂	Tric. 1 : P1
2.HD.05e	Chabournéite	Ag_zTl_8-x-zPb_4+2xSb_40-x-yAs_yS₆₈ 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.15	Christite	TlHgAsS₃	Orth. mmm(2/m2/m2/m) : Cmca
2.HD.15	Markwelchite	TlPbSbS₃	Mon. 2/m : P2₁/b
2.HD.15	Richardsollyite	TlPbAsS₃	Mon. 2/m : P2₁/b
2.HD.20	Jankovićite	Tl₅Sb₉(As,Sb)₄S₂₂	Tric. 1 : P1
2.HD.25	Rebulite	Tl₅Sb₅As₈S₂₂	Mon. 2/m : P2₁/b
2.HD.30	Imhofite	Tl_5.8As_15.4S₂₆	Mon. 2/m
2.HD.35	Edenharterite	PbTlAs₃S₆	Orth. mm2 : Fdd2
2.HD.45	Protochabournéite	Tl_4-xPb_2+2xSb_20-x-yAs_yS₃₄ with 0.02(2) <= x <= 0.34(2), 5.71(9) <= y <= 6.69(9)	Tric. 1 : P1
2.HD.45	Hutchinsonite	TlPbAs₅S₉	Orth. mmm(2/m2/m2/m) : Pbca
2.HD.50	Bernardite	TlAs₅S₈	Mon. 2/m : P2₁/b
2.HD.55	Sicherite	TlAg₂(As,Sb)₃S₆	Orth.
2.HD.55	Geuerite	Ag₂Tl₄Pb₄As₂₂S₄₀	Mon. 2/m : P2₁/b
2.HD.60	Gabrielite	Tl₆Ag₃Cu₆(As,Sb)₉S₂₁	Tric. 1 : P1
2.HD.65	Tsygankoite	Mn₈Tl₈Hg₂(Sb₂₁Pb₂Tl)S₄₈	Mon. 2/m : B2/m
2.HD.70	Drechslerite	Tl₄(Sb_4-xAs_x)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 JentschiteHide

mindat.org URL:

https://www.mindat.org/min-5745.html
Please feel free to link to this page.

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External Links:

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Raman and XRD data at RRUFF project

References and PDF downloads at RRUFF project

American Mineralogist Crystal Structure Database

Handbook of Mineralogy page PDF

Mineral Dealers:

Buy from D. Joyce minerals

References for JentschiteHide

Reference List:

Palache, Charles, Berman, Harry, Frondel, Clifford (1944) The System of Mineralogy (7th ed.) Vol. 1 - Elements, Sulfides, Sulfosalts, Oxides. John Wiley and Sons, New York.

Berlepsch, 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. 147-157

Mandarino, Joseph A. (1997) Abstracts of New Mineral Descriptions. The Mineralogical Record, 28 (6) 483-486

Berlepsch, P., Makovicky, E., Balić-Žunić, T. (2000) Contribution to the crystal chemistry of Tl-sulfosalts. VI. Modular-level structure relationship between edenharterite TlPbAs₃S₆ and jentschite TlPbAs₂SbS₆. Neues Jahrbuch für Mineralogie - Monatshefte, 2000. 315-332

(2005) Jentschite. Handbook of Mineralogy. Mineralogical Society of America

Localities for JentschiteHide

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 ⓘ Vorontsovskoe deposit (Vorontsovsk gold deposit; Vorontsovka deposit)	Vikentyev et al. (2019)

Switzerland (TL)
Valais Goms Binn Fäld ⓘ Lengenbach Quarry (TL)	Graeser et al. (1997)

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Jentschite

About JentschiteHide

Unique IdentifiersHide

Similar NamesHide

IMA Classification of JentschiteHide

Classification of JentschiteHide

Mineral SymbolsHide

Physical Properties of JentschiteHide

Optical Data of JentschiteHide

Chemistry of JentschiteHide

Crystallography of JentschiteHide

Crystal StructureHide

X-Ray Powder DiffractionHide

Geological EnvironmentHide

Type Occurrence of JentschiteHide

Synonyms of JentschiteHide

Other Language Names for JentschiteHide

Common AssociatesHide

Related Minerals - Strunz-mindat GroupingHide

Other InformationHide

Internet Links for JentschiteHide

References for JentschiteHide

Localities for JentschiteHide

Locality ListHide

Related Minerals - Strunz-mindat Grouping Hide