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Dalnegroite

A valid IMA mineral species

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Photos of Dalnegroite (4)

Dalnegroite Gallery Search Photos of Dalnegroite

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Dalnegroite

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

Dalnegroite

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

Dalnegroite, etc.

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

Dalnegroite

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

Dalnegroite

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

Dalnegroite, etc.

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

Dalnegroite

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

Dalnegroite

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

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About DalnegroiteHide

Alberto Dal Negro

Formula:

(Tl₄Pb₂)(As₁₂Sb₈)S₃₄

Colour:

Red

Lustre:

Sub-Metallic

Hardness:

3 - 3½

Specific Gravity:

4.82 (Calculated)

Crystal System:

Triclinic

Member of:

Chabournéite Group

Name:

Named in honor of Alberto Dal Negro (1941 - 1 April 2022, Padua, Veneto, Italy), Professor in Mineralogy and Crystallography, University of Padova, Italy, for "his contribution to the discovery and crystal-structure determination of several new mineral species".

Type Locality:

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

As-dominant analogue of chabournéite.

Structurally related to the Sartorite Group.

Note: Kasatkin et al. (2022) describe a triclinic possible "As analog of protochabournéite («protodalnegroite»)".

Unique IdentifiersHide

Mindat ID:

39758

Long-form identifier:

mindat:1:1:39758:6

GUID
(UUID V4):

af01203e-2bbc-4683-8bcc-44e9030826e8

IMA Classification of DalnegroiteHide

IMA status:

Approved

IMA Formula:

Tl₄Pb₂(As,Sb)₂₀S₃₄

Approval year:

2009

First published:

2009

Type description reference:

Nestola, F., Guastoni, A., Bindi, L., Secco, L. (2009) Dalnegroite, Tl_5–xPb_2x(As,Sb)_2l–xS₃₄, a new thallium sulphosalt from Lengenbach quarry, Binntal, Switzerland. Mineralogical Magazine, 73 (6) 1027-1032 doi:10.1180/minmag.2009.073.6.1027

Classification of DalnegroiteHide

Strunz-mindat (2024):

2.HD.05e

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

Dana 8th ed.:

3.8.12.2

3 : SULFOSALTS
8 : 1 < 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.

Symbol	Source	Reference
Dnr	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 DalnegroiteHide

Lustre:

Sub-Metallic

Transparency:

Opaque

Colour:

Red

Streak:

Brownish-red

Hardness:

3 - 3½ on Mohs scale

Hardness:

VHN₂₅=87 kg/mm² - Vickers

Tenacity:

Brittle

Cleavage:

None Observed

Fracture:

Irregular/Uneven

Density:

4.82 g/cm³ (Calculated)

Optical Data of DalnegroiteHide

Anisotropism:

Strong, bluish to green

Bireflectance:

Highly bireflectant

Reflectivity:

Wavelength	R₁	R₂
471.1nm	45.6%	46.1%
548.3nm	46.1%	46.6%
586.6nm	46.3%	47.0%
652.3nm	46.4%	47.1%

Graph shows reflectance levels at different wavelengths (in nm). Top of box is 100%. Peak reflectance is 47.1%.
R₁ shown in black, R₂ shown in red

Internal Reflections:

Red

Pleochroism:

Weak

Comments:

White to a slightly greenish-grey

Chemistry of DalnegroiteHide

Mindat Formula:

(Tl₄Pb₂)(As₁₂Sb₈)S₃₄

Elements listed:

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

Crystallography of DalnegroiteHide

Crystal System:

Triclinic

Class (H-M):

1 - Pedial

Space Group:

Cell Parameters:

a = 16.217(7) Å, b = 42.544(9) Å, c = 8.557(4) Å
α = 95.72(4)°, β = 90.25(4)°, γ = 96.78(4)°

Ratio:

a:b:c = 0.381 : 1 : 0.201

Unit Cell V:

5,832.53 Å³ (Calculated from Unit Cell)

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)
0020126	Dalnegroite	Bindi L, Nestola F, Guastoni A, Secco L (2013) The crystal structure of dalnegroite, Tl5-xPb2x(As,Sb)21-xS34: a masterpiece of structural complexity Mineralogical Magazine 74 999-1012		2013	Lengenbach quarry, Binntal, Canton Valais, Switzerland	0	293

CIF Raw Data - click here to close

data_global
_chemical_name_mineral 'Dalnegroite'
loop_
_publ_author_name
'Bindi L'
'Nestola F'
'Guastoni A'
'Secco L'
_journal_name_full 'Mineralogical Magazine'
_journal_volume 74 
_journal_year 2013
_journal_page_first 999
_journal_page_last 1012
_publ_section_title
;
 The crystal structure of dalnegroite, Tl5-xPb2x(As,Sb)21-xS34:
 a masterpiece of structural complexity
;
_database_code_amcsd 0020126
_chemical_compound_source 'Lengenbach quarry, Binntal, Canton Valais, Switzerland'
_chemical_formula_sum 'Tl8 Pb4.01 Sb15.99 As24 S68'
_cell_length_a 16.218
_cell_length_b 42.546
_cell_length_c 8.58
_cell_angle_alpha 95.70
_cell_angle_beta 90.18
_cell_angle_gamma 96.38
_cell_volume 5853.937
_exptl_crystal_density_diffrn      4.761
_symmetry_space_group_name_H-M 'P 1'
loop_
_space_group_symop_operation_xyz
  '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   0.24640   0.15800   0.42500   1.00000   0.06100
Tl2   0.23740   0.15770   0.90800   1.00000   0.05900
Tl3   0.73270   0.16090   0.41500   1.00000   0.05300
Tl4   0.73620   0.15900   0.92800   1.00000   0.06900
Tl5   0.27700   0.34460   0.07100   1.00000   0.06600
Tl6   0.27490   0.34220   0.55400   1.00000   0.06600
Tl7   0.77050   0.34290   0.06000   1.00000   0.06200
Tl8   0.77480   0.34300   0.58400   1.00000   0.06100
Tl9   0.24620   0.66010   0.42500   1.00000   0.05700
Tl10   0.23750   0.65970   0.90900   1.00000   0.05600
Tl11   0.73450   0.66290   0.41500   1.00000   0.05100
Tl12   0.73800   0.66160   0.92700   1.00000   0.06600
Tl13   0.27710   0.84680   0.06800   1.00000   0.05400
Tl14   0.27510   0.84500   0.55500   1.00000   0.05400
Tl15   0.77040   0.84520   0.05900   1.00000   0.05900
Tl16   0.77480   0.84510   0.58200   1.00000   0.06000
Pb1   0.00280   0.11130   0.43800   0.69000   0.06100
Sb1   0.00280   0.11130   0.43800   0.31000   0.06100
Pb2   0.50370   0.11210   0.92500   0.59000   0.05200
Sb2   0.50370   0.11210   0.92500   0.41000   0.05200
Pb3   0.00900   0.39080   0.06000   0.59000   0.04200
Sb3   0.00900   0.39080   0.06000   0.41000   0.04200
Pb4   0.50490   0.39040   0.52700   0.63000   0.03800
Sb4   0.50490   0.39040   0.52700   0.37000   0.03800
Pb5   0.00200   0.61400   0.43700   0.81000   0.05700
Sb5   0.00200   0.61400   0.43700   0.19000   0.05700
Pb6   0.50410   0.61480   0.92300   1.00000   0.05000
Pb7   0.01170   0.89220   0.06400   1.00000   0.06300
Pb8   0.50830   0.89180   0.53000   0.27000   0.04700
Sb8   0.50830   0.89180   0.53000   0.73000   0.04700
Sb1   0.15950   0.03020   0.94800   0.83000   0.06100
Pb1   0.15950   0.03020   0.94800   0.17000   0.06100
Sb2   0.33100   0.06560   0.22400   0.92000   0.06200
Pb2   0.33100   0.06560   0.22400   0.08000   0.06200
Sb3   0.65940   0.03290   0.94200   0.82000   0.06000
Pb3   0.65940   0.03290   0.94200   0.18000   0.06000
Sb4   0.83420   0.05970   0.23000   0.67000   0.05400
Pb4   0.83420   0.05970   0.23000   0.33000   0.05400
Sb5   0.49500   0.11860   0.43200   0.71000   0.06800
Pb5   0.49500   0.11860   0.43200   0.29000   0.06800
Sb6   0.99400   0.11480   0.96700   0.95000   0.05000
Pb6   0.99400   0.11480   0.96700   0.05000   0.05000
Sb7   0.01160   0.19630   0.65700   0.70000   0.06600
Pb7   0.01160   0.19630   0.65700   0.30000   0.06600
Sb8   0.50830   0.19770   0.16200   0.84000   0.06200
Pb8   0.50830   0.19770   0.16200   0.16000   0.06200
Sb9   0.16660   0.26200   0.12000   0.65000   0.06200
Pb9   0.16660   0.26200   0.12000   0.35000   0.06200
Sb10   0.34410   0.24290   0.87600   0.70000   0.06700
Pb10   0.34410   0.24290   0.87600   0.30000   0.06700
Sb11   0.66850   0.26140   0.62100   1.00000   0.06000
Sb12   0.84670   0.24290   0.37800   1.00000   0.06300
Sb13   0.00730   0.30530   0.83600   1.00000   0.05100
Sb14   0.50340   0.30800   0.33700   0.83000   0.05800
Pb14   0.50340   0.30800   0.33700   0.17000   0.05800
Sb15   0.02160   0.38060   0.58800   1.00000   0.08400
Sb16   0.52210   0.38360   0.07400   0.94000   0.07100
Pb16   0.52210   0.38360   0.07400   0.06000   0.07100
Sb17   0.17900   0.44040   0.76600   1.00000   0.05900
Sb18   0.67480   0.43730   0.25600   1.00000   0.05700
Sb19   0.68410   0.44200   0.77800   1.00000   0.05600
Sb20   0.83540   0.46640   0.48600   1.00000   0.06400
Sb21   0.48780   0.49040   0.74100   1.00000   0.06600
Sb22   0.15910   0.53240   0.94900   1.00000   0.06700
Sb23   0.32900   0.56700   0.23000   1.00000   0.06500
Sb24   0.65960   0.53500   0.94300   1.00000   0.06500
Sb25   0.83400   0.56170   0.22400   1.00000   0.06500
Sb26   0.49810   0.62030   0.42800   1.00000   0.05700
Sb27   0.99310   0.61710   0.96900   1.00000   0.05800
Sb28   0.01180   0.69890   0.65800   1.00000   0.06100
Sb29   0.50870   0.69990   0.16300   1.00000   0.06100
Sb30   0.16620   0.76390   0.12100   1.00000   0.06000
Sb31   0.34510   0.74510   0.87400   1.00000   0.05600
Sb32   0.66770   0.76320   0.62200   1.00000   0.05900
As1   0.02230   0.01740   0.26100   1.00000   0.05800
As2   0.17190   0.03520   0.51900   1.00000   0.05700
As3   0.33100   0.06670   0.71300   1.00000   0.05000
As4   0.52800   0.02000   0.25000   1.00000   0.05800
As5   0.67600   0.03800   0.51400   1.00000   0.05800
As6   0.83400   0.06990   0.73900   1.00000   0.06200
As7   0.01500   0.18650   0.16400   1.00000   0.06400
As8   0.51600   0.18710   0.65500   1.00000   0.06400
As9   0.15300   0.24810   0.63600   1.00000   0.06000
As10   0.36100   0.25510   0.35500   1.00000   0.05900
As11   0.65300   0.24890   0.13300   1.00000   0.06100
As12   0.86200   0.25380   0.85600   1.00000   0.05700
As13  -0.00100   0.31660   0.33300   1.00000   0.06400
As14   0.49300   0.31800   0.83300   1.00000   0.06400
As15   0.18800   0.43620   0.26800   1.00000   0.05200
As16   0.35610   0.47160   0.05500   1.00000   0.05200
As17   0.34300   0.46730   0.48400   1.00000   0.06200
As18   0.85210   0.46910   0.06700   1.00000   0.05500
As19   0.98600   0.48380   0.74300   1.00000   0.06400
As20   0.02290   0.51040   0.26200   1.00000   0.06000
As21   0.17080   0.52830   0.52000   1.00000   0.05400
As22   0.32800   0.56110   0.72200   1.00000   0.04800
As23   0.52780   0.51340   0.24900   1.00000   0.05800
As24   0.67700   0.53200   0.51400   1.00000   0.05500
As25   0.83300   0.56500   0.73100   1.00000   0.07000
As26   0.01590   0.67880   0.16700   1.00000   0.06500
As27   0.51530   0.68020   0.65600   1.00000   0.06300
As28   0.15420   0.74160   0.63700   1.00000   0.06100
As29   0.35900   0.74770   0.35400   1.00000   0.05600
As30   0.65310   0.74300   0.13300   1.00000   0.06000
As31   0.86100   0.74650   0.85700   1.00000   0.05400
As32   0.00100   0.80950   0.32500   1.00000   0.06500
As33   0.49400   0.81020   0.82400   1.00000   0.05600
As34   0.18770   0.92910   0.26600   1.00000   0.05500
As35   0.35620   0.96460   0.05700   1.00000   0.06000
As36   0.34280   0.96070   0.48100   1.00000   0.06300
As37   0.85350   0.96160   0.07000   1.00000   0.06100
As38   0.98800   0.97790   0.74500   1.00000   0.06100
As39   0.84800   0.74450   0.37300   1.00000   0.05200
As40   0.00800   0.80790   0.82900   1.00000   0.04800
As41   0.50500   0.81020   0.33000   1.00000   0.04700
As42   0.01500   0.88860   0.57500   1.00000   0.02000
As43   0.51540   0.88870   0.04700   1.00000   0.02100
As44   0.17800   0.94310   0.76400   1.00000   0.05800
As45   0.67600   0.93870   0.25100   1.00000   0.05900
As46   0.68600   0.94390   0.77400   1.00000   0.06000
As47   0.83410   0.95880   0.48200   1.00000   0.05700
As48   0.48760   0.98280   0.74000   1.00000   0.05700
S1   0.10200   0.05870   0.27700   1.00000   0.07800
S2   0.06800   0.05550   0.68900   1.00000   0.06000
S3   0.23800   0.08370   0.51300   1.00000   0.07300
S4   0.22800   0.08260   0.92900   1.00000   0.05600
S5   0.44600   0.04330   0.03700   1.00000   0.06600
S6   0.41900   0.03680   0.43400   1.00000   0.05900
S7   0.60000   0.06430   0.28300   1.00000   0.07800
S8   0.57500   0.05640   0.69200   1.00000   0.06400
S9   0.74900   0.08880   0.51200   1.00000   0.06100
S10   0.73400   0.08210   0.93100   1.00000   0.06700
S11   0.94800   0.04090   0.04100   1.00000   0.07700
S12   0.91800   0.02930   0.44200   1.00000   0.06700
S13   0.10100   0.13620   0.19300   1.00000   0.04200
S14   0.08800   0.14800   0.68600   1.00000   0.07900
S15   0.27700   0.21450   0.10800   1.00000   0.05200
S16   0.27900   0.21910   0.66300   1.00000   0.05000
S17   0.38400   0.12130   0.20400   1.00000   0.04900
S18   0.38000   0.11390   0.69800   1.00000   0.05200
S19   0.43400   0.17710   0.46100   1.00000   0.05700
S20   0.43900   0.17700   0.86300   1.00000   0.05900
S21   0.58000   0.14900   0.20100   1.00000   0.08000
S22   0.60200   0.14000   0.67800   1.00000   0.07000
S23   0.78100   0.21920   0.15900   1.00000   0.05300
S24   0.77900   0.21470   0.60800   1.00000   0.05200
S25   0.87400   0.11650   0.20200   1.00000   0.04600
S26   0.87600   0.11980   0.71500   1.00000   0.04900
S27   0.93600   0.17480   0.36800   1.00000   0.06400
S28   0.93900   0.17460   0.96300   1.00000   0.06200
S29   0.10300   0.22180   0.45400   1.00000   0.06200
S30   0.09700   0.22210   0.84500   1.00000   0.06800
S31   0.42800   0.27980   0.14500   1.00000   0.05900
S32   0.40900   0.28230   0.54400   1.00000   0.06200
S33   0.59600   0.22410   0.34400   1.00000   0.05900
S34   0.59500   0.22250   0.95700   1.00000   0.06800
S35   0.90500   0.28290   0.04400   1.00000   0.06000
S36   0.92700   0.27970   0.64500   1.00000   0.05500
S37   0.08000   0.32660   0.10700   1.00000   0.06000
S38   0.08400   0.32800   0.53400   1.00000   0.09000
S39   0.13800   0.38590   0.28200   1.00000   0.03800
S40   0.12700   0.38500   0.78100   1.00000   0.07000
S41   0.23900   0.28500   0.33100   1.00000   0.09000
S42   0.23300   0.28680   0.88300   1.00000   0.07000
S43   0.41800   0.35910   0.29900   1.00000   0.04100
S44   0.41600   0.36000   0.79900   1.00000   0.03900
S45   0.58000   0.33130   0.02300   1.00000   0.07000
S46   0.58000   0.32420   0.61800   1.00000   0.06100
S47   0.63200   0.38070   0.26400   1.00000   0.05500
S48   0.62900   0.39300   0.80600   1.00000   0.06700
S49   0.72700   0.28850   0.38900   1.00000   0.07300
S50   0.73800   0.28370   0.82500   1.00000   0.07300
S51   0.91400   0.36100   0.30000   1.00000   0.07000
S52   0.92500   0.36090   0.79200   1.00000   0.05600
S53   0.08600   0.46770   0.55600   1.00000   0.06700
S54   0.07200   0.46280   0.96000   1.00000   0.05300
S55   0.28300   0.42620   0.08500   1.00000   0.05900
S56   0.27300   0.42400   0.48700   1.00000   0.05600
S57   0.26100   0.00360   0.20600   1.00000   0.06700
S58   0.26100   0.00180   0.79100   1.00000   0.06000
S59   0.44000   0.45680   0.29100   1.00000   0.05300
S60   0.41700   0.44120   0.71700   1.00000   0.05400
S61   0.58800   0.47050   0.55600   1.00000   0.05200
S62   0.57500   0.46740   0.95800   1.00000   0.04800
S63   0.78600   0.42340   0.06900   1.00000   0.05400
S64   0.76400   0.42050   0.48000   1.00000   0.06600
S65   0.75500   0.49550   0.21400   1.00000   0.07700
S66   0.76400   0.00600   0.78700   1.00000   0.05000
S67   0.94000   0.45300   0.28700   1.00000   0.05900
S68   0.91200   0.43900   0.72800   1.00000   0.06000
S69   0.10200   0.55180   0.28100   1.00000   0.06300
S70   0.06800   0.54500   0.69100   1.00000   0.06100
S71   0.24100   0.57590   0.50700   1.00000   0.06100
S72   0.22600   0.57310   0.93300   1.00000   0.06600
S73   0.44500   0.53540   0.03900   1.00000   0.06400
S74   0.41600   0.52920   0.43800   1.00000   0.06000
S75   0.60100   0.55810   0.28600   1.00000   0.06900
S76   0.57800   0.54700   0.70100   1.00000   0.06800
S77   0.74500   0.57800   0.50900   1.00000   0.06100
S78   0.73500   0.57360   0.93800   1.00000   0.06900
S79   0.94400   0.53170   0.04000   1.00000   0.06100
S80   0.91800   0.52280   0.44600   1.00000   0.06600
S81   0.10000   0.63200   0.19200   1.00000   0.05300
S82   0.08800   0.63800   0.68400   1.00000   0.10000
S83   0.27800   0.71650   0.10600   1.00000   0.04700
S84   0.28000   0.72020   0.66100   1.00000   0.05200
S85   0.38400   0.62700   0.20200   1.00000   0.07000
S86   0.37300   0.61200   0.69100   1.00000   0.08000
S87   0.43200   0.67830   0.45600   1.00000   0.05800
S88   0.43800   0.67830   0.86300   1.00000   0.06500
S89   0.58500   0.64760   0.19400   1.00000   0.05800
S90   0.59800   0.64330   0.68500   1.00000   0.03800
S91   0.77900   0.71970   0.15400   1.00000   0.04600
S92   0.77600   0.71640   0.61200   1.00000   0.04900
S93   0.86700   0.61400   0.18700   1.00000   0.08000
S94   0.87700   0.62700   0.74000   1.00000   0.10000
S95   0.93700   0.67640   0.36700   1.00000   0.06200
S96   0.93900   0.67620   0.96200   1.00000   0.05800
S97   0.10200   0.72390   0.45000   1.00000   0.06400
S98   0.09600   0.72360   0.84200   1.00000   0.05900
S99   0.42600   0.78210   0.14700   1.00000   0.05900
S100   0.40900   0.78450   0.54400   1.00000   0.06200
S101   0.59700   0.72590   0.34600   1.00000   0.06400
S102   0.59800   0.72430   0.95500   1.00000   0.06100
S103   0.90400   0.78400   0.04200   1.00000   0.05900
S104   0.92600   0.78240   0.64400   1.00000   0.05700
S105   0.08100   0.82870   0.10900   1.00000   0.07100
S106   0.08100   0.83270   0.53600   1.00000   0.07500
S107   0.14300   0.88800   0.28500   1.00000   0.06000
S108   0.12400   0.88700   0.78400   1.00000   0.11000
S109   0.23300   0.78770   0.33200   1.00000   0.07000
S110   0.23100   0.78790   0.87100   1.00000   0.06000
S111   0.42800   0.86400   0.31000   1.00000   0.09000
S112   0.41800   0.86600   0.81200   1.00000   0.08000
S113   0.57600   0.83450   0.02600   1.00000   0.06500
S114   0.58000   0.82490   0.62200   1.00000   0.06100
S115   0.63500   0.88310   0.26700   1.00000   0.06000
S116   0.62900   0.89290   0.80000   1.00000   0.06700
S117   0.72900   0.77720   0.38700   1.00000   0.06500
S118   0.73600   0.77280   0.83000   1.00000   0.06300
S119   0.90700   0.84740   0.32100   1.00000   0.06400
S120   0.92600   0.84900   0.79500   1.00000   0.07000
S121   0.08400   0.95640   0.56600   1.00000   0.05800
S122   0.07500   0.95040   0.95100   1.00000   0.05700
S123   0.28300   0.91710   0.08100   1.00000   0.06200
S124   0.27100   0.91490   0.48300   1.00000   0.05400
S125   0.26300   0.49250   0.19800   1.00000   0.06200
S126   0.25800   0.49240   0.79100   1.00000   0.05700
S127   0.44100   0.94740   0.28600   1.00000   0.06200
S128   0.41900   0.93290   0.71600   1.00000   0.05400
S129   0.58900   0.95960   0.55800   1.00000   0.05300
S130   0.57500   0.95720   0.95000   1.00000   0.05500
S131   0.78800   0.91320   0.06600   1.00000   0.06500
S132   0.76500   0.91260   0.47800   1.00000   0.06100
S133   0.75500   0.98530   0.21100   1.00000   0.06100
S134   0.76500   0.49700   0.79000   1.00000   0.05800
S135   0.94300   0.94320   0.28500   1.00000   0.06500
S136   0.91500   0.92920   0.73500   1.00000   0.05600

X-Ray Powder DiffractionHide

Powder Diffraction Data:

d-spacing	Intensity
3.927 Å	(100)
3.774 Å	(45)
3.685 Å	(45)
3.620 Å	(50)
3.124 Å	(50)
2.929 Å	(60)
2.850 Å	(70)
2.097 Å	(60)

Geological EnvironmentHide

Paragenetic Mode(s):

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

Type Occurrence of DalnegroiteHide

Type Locality:

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

Place of Conservation of Type Material:

Museum of Mineralogy of the Department of Geosciences at the University of Padova, catalogue number MMP M762.

Associated Minerals at Type Locality:

Reference:

Nestola, F., A. Guastoni, L. Bindi, and L. Secco (2009) Dalnegroite,Tl^5-xPb^2x(As,Sb)^21-xS^34, a new thallium sulphosalt from Lengenbach quarry, Binntal, Switzerland. Mineralogical Magazine: 73: 1027-1032

Download:

https://rruff.info/rruff_1.0/uploads/MM73_1027.pdf

Synonyms of DalnegroiteHide

IMA2009-058

Relationship of Dalnegroite to other SpeciesHide

Member of:

Chabournéite Group

Other Members of this group:

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
Dewitite	Ag_zTl_10-x-zPb_2xSb_42-x-yAs_yS₆₈	Tric. 1 : P1
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
Shimenite	Tl₅Sb_21-yAs_yS₃₄	Tric. 1 : P1
Vallouiseite	Ag₃Tl_21.5PbSb₆₃As_41.5S₁₇₀	Tric. 1 : P1

Structurally related to group(s):

Sartorite Group

A group of chemically and structurally very complex sulphosalts which are impossible to identify visually.

Common AssociatesHide

Associated Minerals Based on Photo Data:

3 photos of Dalnegroite associated with Realgar

As₄S₄

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.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.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 DalnegroiteHide

mindat.org URL:

https://www.mindat.org/min-39758.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

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References for DalnegroiteHide

Reference List:

Bindi, L., Nestola, F., Guastoni, A., Secco, L. (2010) The crystal structure of dalnegroite, Tl_5−xPb_2x(As,Sb)_21−xS₃₄: a masterpiece of structural complexity. Mineralogical Magazine, 74 (6) 999-1012 doi:10.1180/minmag.2010.074.6.999

Piilonen, P.C., Poirier, G. (2010) New mineral names. American Mineralogist: 95: 1357-1361.

Nestola, F., Guastoni, A., Bindi, L., Secco, L. (2010) Erratum: Dalnegroite, Tl5–xPb2x(As,Sb)2l–xS34, a new thallium sulphosalt from Lengenbach quarry, Binntal, Switzerland. Mineralogical Magazine, 74 (1) 187 doi:10.1180/s0026461x0005711x

Kasatkin, A.V., Stepanov, S.Yu., Tsyganko, M.V., Skoda, R., Nestola, F., Plasil, J., Makovicky, E., Agakhanov, A.A., Palamarchuk, R.S. (2022) Mneralogy of the Vorontsovskoe gold deposit (Northern Urals) МИНЕРАЛОГИЯ (MINERALOGY), 8 (1) 1-95 doi:10.35597/2313-545x-2022-8-1-1

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

Localities for DalnegroiteHide

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.


China
Hunan Changde Shimen Co. Shimen deposit ⓘ ~~Jiepaiyu Mine~~	Roth et al. (2017)

Russia
Sverdlovsk Oblast Serovsky District Turya river Tur'insk ⓘ Vorontsovskoe deposit (Vorontsovsk gold deposit; Vorontsovka deposit)	Kasatkin et al. (2018) +5 other references

Switzerland (TL)
Valais Goms Binn Fäld ⓘ Lengenbach Quarry (TL)	Nestola et al. (2009) +1 other reference

Dalnegroite

About DalnegroiteHide

Unique IdentifiersHide

IMA Classification of DalnegroiteHide

Classification of DalnegroiteHide

Mineral SymbolsHide

Physical Properties of DalnegroiteHide

Optical Data of DalnegroiteHide

Chemistry of DalnegroiteHide

Crystallography of DalnegroiteHide

Crystal StructureHide

X-Ray Powder DiffractionHide

Geological EnvironmentHide

Type Occurrence of DalnegroiteHide

Synonyms of DalnegroiteHide

Relationship of Dalnegroite to other SpeciesHide

Common AssociatesHide

Related Minerals - Strunz-mindat GroupingHide

Other InformationHide

Internet Links for DalnegroiteHide

References for DalnegroiteHide

Localities for DalnegroiteHide

Locality ListHide

Related Minerals - Strunz-mindat Grouping Hide