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Gabrielite

A valid IMA mineral species

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Photos of Gabrielite (2)

Search Photos of Gabrielite

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Gabrielite

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

Gabrielite

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

Gabrielite

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

Gabrielite

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

Gabrielite

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

Gabrielite

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

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About GabrieliteHide

Walter Gabriel

Formula:

Tl₆Ag₃Cu₆(As,Sb)₉S₂₁

Colour:

Grey to black

Lustre:

Metallic

Hardness:

1½ - 2

Specific Gravity:

5.38 (Calculated)

Crystal System:

Triclinic

Name:

Named for Walter Gabriel of Basel/Münchenstein, Switzerland, well-known mineral photographer and expert of the Lengenbach minerals.

Type Locality:

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

This page provides mineralogical data about Gabrielite.

Unique IdentifiersHide

Mindat ID:

26386

Long-form identifier:

mindat:1:1:26386:3

GUID
(UUID V4):

c4ad8825-754c-4f95-9b99-0e752483f3d5

IMA Classification of GabrieliteHide

IMA status:

Approved

IMA Formula:

Tl₂AgCu₂As₃S₇

Approval year:

2002

First published:

2006

Classification of GabrieliteHide

Strunz-mindat (2024):

2.HD.60

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
Gab	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 GabrieliteHide

Lustre:

Metallic

Transparency:

Opaque

Colour:

Grey to black

Streak:

Blackish red

Hardness:

1½ - 2 on Mohs scale

Hardness:

VHN₁₀=18 kg/mm² - Vickers

Cleavage:

Perfect
along (001)

Fracture:

Irregular/Uneven, Conchoidal

Density:

5.38 g/cm³ (Calculated)

Optical Data of GabrieliteHide

Anisotropism:

weak

Reflectivity:

Wavelength	R
470nm	30.53%
546nm	29.10%
589nm	27.94%
650nm	26.35%

Graph shows reflectance levels at different wavelengths (in nm). Top of box is 100%. Peak reflectance is 30.53%.

Colour in reflected light:

White

Internal Reflections:

Red

Chemistry of GabrieliteHide

Mindat Formula:

Tl₆Ag₃Cu₆(As,Sb)₉S₂₁

Elements listed:

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

Crystallography of GabrieliteHide

Crystal System:

Triclinic

Class (H-M):

1 - Pedial

Space Group:

Cell Parameters:

a = 12.138 Å, b = 12.196 Å, c = 15.944 Å
α = 78.537°, β = 84.715°, γ = 60.47°

Ratio:

a:b:c = 0.995 : 1 : 1.307

Unit Cell V:

2013 Å³

Morphology:

Pseudohexagonal crystals, short prismatic to platy parallel to (001).

Twinning:

Common, with (100) as twin plane.

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)
0006071	Gabrielite	Balic-Zunic T, Makovicky E, Karanovic L, Poleti D, Graeser S (2006) The crystal structure of gabrielite, Tl2AgCu2As3S7, a new species of thallium sulfosalt from Lengenbach, Switzerland The Canadian Mineralogist 44 141-158		2006	Lengenbach, Switzerland	0	293

CIF Raw Data - click here to close

data_global
_chemical_name_mineral 'Gabrielite'
loop_
_publ_author_name
'Balic-Zunic T'
'Makovicky E'
'Karanovic L'
'Poleti D'
'Graeser S'
_journal_name_full 'The Canadian Mineralogist'
_journal_volume 44 
_journal_year 2006
_journal_page_first 141
_journal_page_last 158
_publ_section_title
;
 The crystal structure of gabrielite, Tl2AgCu2As3S7, a new species
 of thallium sulfosalt from Lengenbach, Switzerland
;
_database_code_amcsd 0006071
_chemical_compound_source 'Lengenbach, Switzerland'
_chemical_formula_sum 'Tl6 Ag2.63 Cu6.37 As8.55 Sb.45 S21'
_cell_length_a 12.138
_cell_length_b 12.196
_cell_length_c 15.944
_cell_angle_alpha 78.537
_cell_angle_beta 84.715
_cell_angle_gamma 60.470
_cell_volume 2012.655
_exptl_crystal_density_diffrn      5.418
_symmetry_space_group_name_H-M 'P -1'
loop_
_space_group_symop_operation_xyz
  'x,y,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
Tl1   0.38351   0.48556   0.43115   1.00000   0.03120
Tl2   0.23349   0.89114   0.49914   1.00000   0.03880
Tl3   0.62806   0.84668   0.46356   1.00000   0.03850
Tl4  -0.00007   0.27521   0.46826   1.00000   0.04710
Tl5   0.66667   0.64355   0.09277   1.00000   0.03890
Tl6   0.98277  -0.00790   0.09798   1.00000   0.05020
Ag1   0.13400   0.60090   0.28280   0.38000   0.03880
Cu1   0.13400   0.60090   0.28280   0.62000   0.03880
Ag2   0.18530   0.06750   0.27470   0.14000   0.03620
Cu2   0.18530   0.06750   0.27470   0.86000   0.03620
Cu3   0.66770   0.10940   0.26950   1.00000   0.03330
Ag4   0.98770   0.47460   0.31550   0.06000   0.03200
Cu4   0.98770   0.47460   0.31550   0.94000   0.03200
Ag5   0.45540   0.89910   0.31430   0.06000   0.03490
Cu5   0.45540   0.89910   0.31430   0.94000   0.03490
Ag6   0.57960   0.35870   0.30020   0.10000   0.04100
Cu6   0.57960   0.35870   0.30020   0.90000   0.04100
Ag7   0.84530   0.26920   0.28350   0.26000   0.03350
Cu7   0.84530   0.26920   0.28350   0.74000   0.03350
Ag8   0.83340   0.75230   0.28460   0.84000   0.03110
Cu8   0.83340   0.75230   0.28460   0.16000   0.03110
Ag9   0.33480   0.75440   0.28060   0.79000   0.03180
Cu9   0.33480   0.75440   0.28060   0.21000   0.03180
As1  -0.00710   0.93040   0.29720   1.00000   0.01730
As2   0.67260   0.57510   0.33570   1.00000   0.01440
As3   0.33320   0.25380   0.28780   0.95000   0.01810
Sb3   0.33320   0.25380   0.28780   0.05000   0.01810
As4   0.65470   0.37720   0.07670   0.87000   0.02010
Sb4   0.65470   0.37720   0.07670   0.13000   0.02010
As5   0.33470   0.54490   0.15040   1.00000   0.01840
As6   0.39200   0.93150   0.07630   0.84000   0.01900
Sb6   0.39200   0.93150   0.07630   0.16000   0.01900
As7   0.58900   0.03390   0.15480   1.00000   0.01830
As8   0.95250   0.63560   0.07610   0.89000   0.01930
Sb8   0.95250   0.63560   0.07610   0.11000   0.01930
As9   0.08140   0.29710   0.15350   1.00000   0.01750
S1   0.81840   0.93060   0.35760   1.00000   0.02200
S2   0.14790   0.74300   0.36270   1.00000   0.03400
S3   0.01060   0.07240   0.35810   1.00000   0.02900
S4   0.82210   0.58190   0.40700   1.00000   0.02200
S5   0.49150   0.70570   0.40140   1.00000   0.01900
S6   0.70160   0.37780   0.39750   1.00000   0.02100
S7   0.50710   0.21520   0.35990   1.00000   0.02300
S8   0.18630   0.39890   0.36570   1.00000   0.02700
S9   0.31710   0.08070   0.36210   1.00000   0.02500
S10   0.76400   0.20760   0.18050   1.00000   0.02800
S11   0.46300   0.37520   0.08210   1.00000   0.02200
S12   0.28070   0.72130   0.04060   1.00000   0.02600
S13   0.48340   0.55670   0.21350   1.00000   0.02300
S14   0.23320   0.94870   0.16910   1.00000   0.03000
S15   0.39980   0.11790   0.08610   1.00000   0.02300
S16   0.73300   0.96950   0.04540   1.00000   0.02600
S17   0.61140   0.84300   0.21600   1.00000   0.02200
S18  -0.00590   0.72940   0.16870   1.00000   0.02600
S19   0.14150   0.44230   0.08400   1.00000   0.02200
S20   0.98620   0.27170   0.04530   1.00000   0.02800
S21   0.90530   0.42740   0.21560   1.00000   0.02400

X-Ray Powder DiffractionHide

Powder Diffraction Data:

d-spacing	Intensity
15.63 Å	(100)
3.143 Å	(90)
3.531 Å	(80)
2.911 Å	(70)
2.520 Å	(60)
2.978 Å	(60)

Comments:

Format: dobs(Å) Iobs(%)

Geological EnvironmentHide

Paragenetic Mode(s):

Paragenetic Mode	Earliest Age (Ga)
Stage 3b: Earth’s earliest hydrosphere	>4.45
12 : Hadean hydrothermal subsurface sulfide deposits (see also #33)

Type Occurrence of GabrieliteHide

Type Locality:

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

General Appearance of Type Material:

Idiomorphic short-prismatic to platy crystals up to approximately 0.4 mm, and aggregates to about 1 mm across.

Place of Conservation of Type Material:

Natural History Museum and the Institute of Mineralogy, University of Basel, Switzerland (S113).

Geological Setting of Type Material:

Arsenic-rich sulphide mineralization in Triassic dolomite.

Associated Minerals at Type Locality:

Trechmannite	Tennantite Subgroup	Realgar	Rathite	Hutchinsonite
Hatchite	Edenharterite

Synonyms of GabrieliteHide

IMA2002-053

Other Language Names for GabrieliteHide

German:Gabrielit

Russian:Габриелит

Simplified Chinese:硫砷银铜铊矿

Related Minerals - Strunz-mindat Grouping Hide

2.HD.	Boscardinite	TlPb₄(Sb₇As₂)S₁₈	Tric. 1 : P1
2.HD.	Enneasartorite	Tl₆Pb₃₂As₇₀S₁₄₀	Mon. 2/m : P2₁/b
2.HD.	Gungerite	TlAs₅Sb₄S₁₃	Orth. mmm (2/m 2/m 2/m) : Pbcn
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.	Vallouiseite	Ag₃Tl_21.5PbSb₆₃As_41.5S₁₇₀	Tric. 1 : P1
2.HD.	Buynite	TlPb₁₄As₁₇S₄₀	Mon. 2 : P2₁
2.HD.	Giuşcăite	Ag₂Tl₄Pb₄As₂₀Sb₂S₄₀	Mon. m
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.05	Lorándite	TlAsS₂	Mon. 2/m : P2₁/b
2.HD.05	Weissbergite	TlSbS₂	Tric. 1 : P1
2.HD.05e	Dalnegroite	(Tl₄Pb₂)(As₁₂Sb₈)S₃₄	Tric. 1 : P1
2.HD.15	Christite	TlHgAsS₃	Orth. mmm (2/m 2/m 2/m) : Cmca
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.40	Jentschite	TlPbAs₂SbS₆	Mon. 2/m
2.HD.45	Hutchinsonite	TlPbAs₅S₉	Orth. mmm (2/m 2/m 2/m) : Pbca
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.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.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 GabrieliteHide

mindat.org URL:

https://www.mindat.org/min-26386.html
Please feel free to link to this page.

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External Links:

Look for Gabrielite on Webmineral

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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

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References for GabrieliteHide

Reference List:

Graeser, S., Topa, D., Balić-Žunić, T., Makovicky, E. (2006) Gabrielite, Tl₂AgCu₂As₃S₇, a new species of thallium sulfosalt from Lengenbach, Binntal, Switzerland. The Canadian Mineralogist, 44 (1) 135-140 doi:10.2113/gscanmin.44.1.135

Balić-Žunić, T., Makovicky, E., Karanović, L., Poleti, D., Graeser, S. (2006) The crystal structure of gabrielite, Tl₂AgCu₂As₃S₇, a new species of thallium sulfosalt from Lengenbach, Switzerland. The Canadian Mineralogist, 44 (1) 141-158 doi:10.2113/gscanmin.44.1.141

(2023) Gabrielite. Handbook of Mineralogy. Mineralogical Society of America

Localities for GabrieliteHide

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.

Switzerland (TL)

Valais

Goms

Binn

Fäld

ⓘ Lengenbach Quarry (TL)

Graeser +2 other references

Gabrielite

About GabrieliteHide

Unique IdentifiersHide

IMA Classification of GabrieliteHide

Classification of GabrieliteHide

Mineral SymbolsHide

Physical Properties of GabrieliteHide

Optical Data of GabrieliteHide

Chemistry of GabrieliteHide

Crystallography of GabrieliteHide

Crystal StructureHide

X-Ray Powder DiffractionHide

Geological EnvironmentHide

Type Occurrence of GabrieliteHide

Synonyms of GabrieliteHide

Other Language Names for GabrieliteHide

Related Minerals - Strunz-mindat GroupingHide

Other InformationHide

Internet Links for GabrieliteHide

References for GabrieliteHide

Localities for GabrieliteHide

Locality ListHide

Related Minerals - Strunz-mindat Grouping Hide