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Dantopaite

A valid IMA mineral species
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About DantopaiteHide

Formula:
Ag5Bi13S22
Empirical formula:
Cu1.06Ag4.24Pb0.9Bi12.23S21.89Te0.11.
Colour:
Gray-white
Lustre:
Metallic
Hardness:
Specific Gravity:
6.74 (Calculated)
Crystal System:
Monoclinic
Name:
The name honors Dr. Dan Topa (b. 1955, Bukarest, Romania), University of Salzburg, ore mineralogist and crystallographer.
N = 6 member of Pavonite homologous series.
A probable "(Cu,Pb)-analogue of dantopaite" was described by Kolitsch et al. (2019).

Chemically, the S analogue of Unnamed (Se-analogue of Dantopaite).


Unique IdentifiersHide

Mindat ID:
39325
Long-form identifier:
mindat:1:1:39325:2
GUID
(UUID V4):
98904276-9744-4921-bf5e-0e6cbf328b38

IMA Classification of DantopaiteHide

Classification of DantopaiteHide

2.JA.05

2 : SULFIDES and SULFOSALTS (sulfides, selenides, tellurides; arsenides, antimonides, bismuthides; sulfarsenites, sulfantimonites, sulfbismuthites, etc.)
J : Sulfosalts of PbS archetype
A : Galena derivatives with little or no Pb
3.8.10.9

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.

Please only use the official IMA–CNMNC symbol. Older variants are listed for historical use only.

SymbolSourceReference
DntIMA–CNMNCWarr, L.N. (2021). IMA–CNMNC approved mineral symbols. Mineralogical Magazine, 85(3), 291-320. doi:10.1180/mgm.2021.43
DntThe Canadian Mineralogist (2019)The Canadian Mineralogist (2019) The Canadian Mineralogist list of symbols for rock- and ore-forming minerals (December 30, 2019). download

Physical Properties of DantopaiteHide

Metallic
Transparency:
Opaque
Colour:
Gray-white
Streak:
Gray
Hardness:
3½ on Mohs scale
Hardness:
VHN50=190 kg/mm2 - Vickers
Tenacity:
Brittle
Cleavage:
None Observed
Fracture:
Irregular/Uneven
Density:
6.74 g/cm3 (Calculated)
Comment:
Density could not be measured.

Optical Data of DantopaiteHide

Anisotropism:
Distinct in air and becomes enhanced in oil. Between crossed polars, bluish grey to brownish grey rotation- tints are common.
Bireflectance:
Perceptible in air and moderate in oil.
Reflectivity:
WavelengthR1R2
400nm41.2%46.8%
420nm41.4%47.5%
440nm41.8%48.9%
460nm41.6%48.6%
470nm41.5%48.3%
480nm41.6%48.5%
500nm41.4%48.1%
520nm41.2%48.0%
540nm41.0%47.3%
560nm40.9%47.3%
580nm40.5%47.1%
589nm40.4%46.6%
600nm40.4%46.8%
620nm40.2%46.6%
640nm39.3%45.8%
650nm39.9%46.1%
660nm39.9%45.8%
680nm39.6%45.4%
700nm39.6%45.2%

Reflectance graph
Graph shows reflectance levels at different wavelengths (in nm). Top of box is 100%. Peak reflectance is 48.9%.
R1 shown in black, R2 shown in red
Colour in reflected light:
Grayish white
Pleochroism:
Visible
Comments:
Shades of grey

Chemistry of DantopaiteHide

Mindat Formula:
Ag5Bi13S22

Empirical formula:
Cu1.06Ag4.24Pb0.9Bi12.23S21.89Te0.11.

Chemical AnalysisHide

Empirical formulas:
Sample IDEmpirical Formula
1(1) Cu1.36Ag4.39Pb0.12Bi12.62Sb0.06(S14.01Se7.91Te0.08); (2) Cu0.89Ag4.50Pb0.49Bi12.53Sb0.07(S11.26Se10.74)

Crystallography of DantopaiteHide

Crystal System:
Monoclinic
Class (H-M):
2/m - Prismatic
Space Group:
B2/m
Setting:
C2/m
Cell Parameters:
a = 13.380(3) Å, b = 4.0492(9) Å, c = 18.690(4) Å
β = 105.494(4)°
Ratio:
a:b:c = 3.304 : 1 : 4.616
Unit Cell V:
975.79 ų (Calculated from Unit Cell)
Z:
1
Morphology:
Isolated grains intimately intergrown with pavonite or benjaminite or both.

Crystal StructureHide

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IDSpeciesReferenceLinkYearLocalityPressure (GPa)Temp (K)
0006280DantopaiteMakovicky E, Paar W H, Putz H, Zagler G (2010) Dantopaite, Ag5Bi13S22, the 6P natural member of the pavonite homologous series, from Erzwies, Austria The Canadian Mineralogist 48 467-4812010Erzwies, Austria0293
CIF Raw Data - click here to close

X-Ray Powder DiffractionHide

Powder Diffraction Data:
d-spacingIntensity
3.578 Å(58)
3.452 Å(90)
3.331 Å(36)
3.301 Å(40)
2.861 Å(100)
2.225 Å(24)
2.025 Å(25)
2.013 Å(24)

Geological EnvironmentHide

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

Type Occurrence of DantopaiteHide

General Appearance of Type Material:
Isolated grains and intimately intergrown with pavonite or benjaminite or both, to 300 μm.
Place of Conservation of Type Material:
Department of Materials Research and Physics (Division of Mineralogy), University of Salzburg, Austria.
Geological Setting of Type Material:
In a quartz vein, cutting gneiss.
Associated Minerals at Type Locality:
Reference:
Makovicky, E., Paar, W.H., Putz, H., Zagler, G. (2010): Dantopaite, Ag5Bi13S22, the 6P natural member of the pavonite homologous series, from Erzwies, Austria. Canadian Mineralogist, 48, 467-481.

Synonyms of DantopaiteHide

Other Language Names for DantopaiteHide

German:Dantopait

Relationship of Dantopaite to other SpeciesHide

Other Members of this group:
BenjaminiteAg3Bi7S12Mon. 2/m : B2/m
CupromakopavoniteAg3Cu8Pb4Bi19S38Mon. 2/m : B2/m
CupromakovickyiteCu4AgPb2Bi9S18Mon. 2/m : B2/m
CupropavoniteCu0.9Ag0.5Pb0.6Bi2.5S5 Mon. 2/m : B2/m
LuboržákiteMn2AsSbS5Mon. 2/m : B2/m
MakovickyiteCu1.12Ag0.81Pb0.27Bi5.35S9Mon. 2/m
MummeiteCu0.58Ag3.11Pb1.10Bi6.65S13Mon.
PavoniteAgBi3S5Mon. 2/m : B2/m

Common AssociatesHide

Associated Minerals Based on Photo Data:
2 photos of Dantopaite associated with CupropavoniteCu0.9Ag0.5Pb0.6Bi2.5S5
2 photos of Dantopaite associated with PavoniteAgBi3S5
2 photos of Dantopaite associated with QuartzSiO2

Related Minerals - Strunz-mindat GroupingHide

2.JA.FerdowsiiteAg8(Sb5As3)S16Mon. 2/m : P21/b
2.JA.SangenaroiteAg8(Sb8-xAsx)SΣ16 Mon. 2/m
2.JA.LuboržákiteMn2AsSbS5Mon. 2/m : B2/m
2.JA.05eBenjaminiteAg3Bi7S12Mon. 2/m : B2/m
2.JA.05gBorodaeviteAg5(Bi,Pb,Fe)8(Sb,Bi)2S17Mon.
2.JA.05aCupropavoniteCu0.9Ag0.5Pb0.6Bi2.5S5 Mon. 2/m : B2/m
2.JA.05iLivingstoniteHgSb4S6(S2)Mon. 2/m : B2/b
2.JA.05dMakovickyiteCu1.12Ag0.81Pb0.27Bi5.35S9Mon. 2/m
2.JA.05fMummeiteCu0.58Ag3.11Pb1.10Bi6.65S13Mon.
2.JA.05aPavoniteAgBi3S5Mon. 2/m : B2/m
2.JA.05bGrumipluciteHgBi2S4Mon. 2/m : B2/m
2.JA.05hMozgovaitePbBi4S7Orth. mmm (2/m 2/m 2/m)
2.JA.05dCupromakovickyiteCu4AgPb2Bi9S18Mon. 2/m : B2/m
2.JA.05cKudriavite(Cd,Pb)Bi2S4Mon. 2/m : B2/m
2.JA.05aCupromakopavoniteAg3Cu8Pb4Bi19S38Mon. 2/m : B2/m
2.JA.05SelenodantopaiteAg5Bi13Se22Mon. 2/m : B2/m
2.JA.10aCuprobismutiteCu8AgBi13S24Mon. 2/m : B2/m
2.JA.10cHodrušiteCu8Bi12S22Mon. 2/m
2.JA.10ePadĕraiteCu7[(Cu,Ag)0.33Pb1.33Bi11.33]S22Mon. 2/m : P21/m
2.JA.10dPizgrischite(Cu,Fe)Cu14PbBi17S35Mon. 2/m : B2/m
2.JA.10bKupčíkiteCu3.4Fe0.6Bi5S10Mon. 2/m : B2/m
2.JA.15SchapbachiteAg0.4Pb0.2Bi0.4SIso. m3m (4/m 3 2/m) : Fm3m
2.JA.15CuboargyriteAgSbS2Iso. m3m (4/m 3 2/m)
2.JA.20BohdanowicziteAgBiSe2Trig. 3m (3 2/m) : P3m1
2.JA.20MatilditeAgBiS2Trig. 3 2 : P31 2 1
2.JA.20VolynskiteAgBiTe2Trig. 3m (3 2/m) : P3m1

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 DantopaiteHide

References for DantopaiteHide

Localities for DantopaiteHide

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.
Austria (TL)
 
  • Salzburg
    • St. Johann im Pongau District
      • Bad Hofgastein
Makovicky et al. (2010)
Germany
 
  • Baden-Württemberg
    • Freiburg Region
      • Ortenaukreis
        • Oberwolfach
Kolitsch et al. (2019)
Russia
 
  • Chelyabinsk Oblast
    • Kaslinsky District
Rogov et al. (2023)
Rogov et al. (2023)
Slovakia
 
  • Banská Bystrica Region
    • Žarnovica District
      • Hodruša-Hámre
        • Hodruša-Hámre mines
Jeleň et al. (2012)
USA
 
  • Nevada
    • Esmeralda County
      • Goldfield Mining District
        • Goldfield
Musetti et al. (2023)
 
Mineral and/or Locality  
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