Dantopaite
A valid IMA mineral species
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About Dantopaite
Formula:
Ag5Bi13S22
Empirical formula:
Cu1.06Ag4.24Pb0.9Bi12.23S21.89Te0.11.
Cu1.06Ag4.24Pb0.9Bi12.23S21.89Te0.11.
Colour:
Gray-white
Lustre:
Metallic
Hardness:
3½
Specific Gravity:
6.74 (Calculated)
Crystal System:
Monoclinic
Member of:
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).
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 Identifiers
Mindat ID:
39325
Long-form identifier:
mindat:1:1:39325:2
GUID
(UUID V4):
(UUID V4):
98904276-9744-4921-bf5e-0e6cbf328b38
IMA Classification of Dantopaite
Approved
Approval year:
2009
First published:
2010
Classification of Dantopaite
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
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
3 : SULFOSALTS
8 : 1 < ø < 2
Mineral Symbols
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.
Please only use the official IMA–CNMNC symbol. Older variants are listed for historical use only.
Symbol | Source | Reference |
---|---|---|
Dnt | IMA–CNMNC | Warr, L.N. (2021). IMA–CNMNC approved mineral symbols. Mineralogical Magazine, 85(3), 291-320. doi:10.1180/mgm.2021.43 |
Dnt | The 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 Dantopaite
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 Dantopaite
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:
Wavelength | R1 | R2 |
---|---|---|
400nm | 41.2% | 46.8% |
420nm | 41.4% | 47.5% |
440nm | 41.8% | 48.9% |
460nm | 41.6% | 48.6% |
470nm | 41.5% | 48.3% |
480nm | 41.6% | 48.5% |
500nm | 41.4% | 48.1% |
520nm | 41.2% | 48.0% |
540nm | 41.0% | 47.3% |
560nm | 40.9% | 47.3% |
580nm | 40.5% | 47.1% |
589nm | 40.4% | 46.6% |
600nm | 40.4% | 46.8% |
620nm | 40.2% | 46.6% |
640nm | 39.3% | 45.8% |
650nm | 39.9% | 46.1% |
660nm | 39.9% | 45.8% |
680nm | 39.6% | 45.4% |
700nm | 39.6% | 45.2% |
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 Dantopaite
Mindat Formula:
Ag5Bi13S22
Empirical formula:
Cu1.06Ag4.24Pb0.9Bi12.23S21.89Te0.11.
Empirical formula:
Cu1.06Ag4.24Pb0.9Bi12.23S21.89Te0.11.
Elements listed:
Chemical Analysis
Empirical formulas:
Sample ID | Empirical Formula |
---|---|
1 | (1) Cu1.36Ag4.39Pb0.12Bi12.62Sb0.06(S14.01Se7.91Te0.08); (2) Cu0.89Ag4.50Pb0.49Bi12.53Sb0.07(S11.26Se10.74) |
Sample references:
ID | Locality | Reference | Notes |
---|---|---|---|
1 | Mohawk Mine, Goldfield, Goldfield Mining District, Esmeralda County, Nevada, USA | (1) Se-rich variety; (2) (Pb,Se)-rich variety domains, as up-to-30-μm-sized grains intergrown with bohdanowiczite |
Crystallography of Dantopaite
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)°
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 Structure
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Unit Cell | Unit Cell Packed
2x2x2 | 3x3x3 | 4x4x4
Unit Cell | Unit Cell Packed
2x2x2 | 3x3x3 | 4x4x4
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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) |
---|---|---|---|---|---|---|---|
0006280 | Dantopaite | Makovicky 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 48 467-481 | 2010 | Erzwies, Austria | 0 | 293 |
CIF Raw Data - click here to close
X-Ray Powder Diffraction
Powder Diffraction Data:
d-spacing | Intensity |
---|---|
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 Environment
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 Dantopaite
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 Dantopaite
Other Language Names for Dantopaite
German:Dantopait
Relationship of Dantopaite to other Species
Member of:
Other Members of this group:
Benjaminite | Ag3Bi7S12 | Mon. 2/m : B2/m |
Cupromakopavonite | Ag3Cu8Pb4Bi19S38 | Mon. 2/m : B2/m |
Cupromakovickyite | Cu4AgPb2Bi9S18 | Mon. 2/m : B2/m |
Cupropavonite | Cu0.9Ag0.5Pb0.6Bi2.5S5 | Mon. 2/m : B2/m |
Luboržákite | Mn2AsSbS5 | Mon. 2/m : B2/m |
Makovickyite | Cu1.12Ag0.81Pb0.27Bi5.35S9 | Mon. 2/m |
Mummeite | Cu0.58Ag3.11Pb1.10Bi6.65S13 | Mon. |
Pavonite | AgBi3S5 | Mon. 2/m : B2/m |
Common Associates
Associated Minerals Based on Photo Data:
Related Minerals - Strunz-mindat Grouping
2.JA. | Ferdowsiite | Ag8(Sb5As3)S16 |
2.JA. | Sangenaroite | Ag8(Sb8-xAsx)SΣ16 |
2.JA. | Luboržákite | Mn2AsSbS5 |
2.JA.05e | Benjaminite | Ag3Bi7S12 |
2.JA.05g | Borodaevite | Ag5(Bi,Pb,Fe)8(Sb,Bi)2S17 |
2.JA.05a | Cupropavonite | Cu0.9Ag0.5Pb0.6Bi2.5S5 |
2.JA.05i | Livingstonite | HgSb4S6(S2) |
2.JA.05d | Makovickyite | Cu1.12Ag0.81Pb0.27Bi5.35S9 |
2.JA.05f | Mummeite | Cu0.58Ag3.11Pb1.10Bi6.65S13 |
2.JA.05a | Pavonite | AgBi3S5 |
2.JA.05b | Grumiplucite | HgBi2S4 |
2.JA.05h | Mozgovaite | PbBi4S7 |
2.JA.05d | Cupromakovickyite | Cu4AgPb2Bi9S18 |
2.JA.05c | Kudriavite | (Cd,Pb)Bi2S4 |
2.JA.05a | Cupromakopavonite | Ag3Cu8Pb4Bi19S38 |
2.JA.05 | Selenodantopaite | Ag5Bi13Se22 |
2.JA.10a | Cuprobismutite | Cu8AgBi13S24 |
2.JA.10c | Hodrušite | Cu8Bi12S22 |
2.JA.10e | Padĕraite | Cu7[(Cu,Ag)0.33Pb1.33Bi11.33]S22 |
2.JA.10d | Pizgrischite | (Cu,Fe)Cu14PbBi17S35 |
2.JA.10b | Kupčíkite | Cu3.4Fe0.6Bi5S10 |
2.JA.15 | Schapbachite | Ag0.4Pb0.2Bi0.4S |
2.JA.15 | Cuboargyrite | AgSbS2 |
2.JA.20 | Bohdanowiczite | AgBiSe2 |
2.JA.20 | Matildite | AgBiS2 |
2.JA.20 | Volynskite | AgBiTe2 |
Other Information
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 Dantopaite
mindat.org URL:
https://www.mindat.org/min-39325.html
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References for Dantopaite
Localities for Dantopaite
Locality List
- 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.
All localities listed without proper references should be considered as questionable.
Austria (TL) | |
| Makovicky et al. (2010) |
Germany | |
| Kolitsch et al. (2019) |
Russia | |
| Rogov et al. (2023) |
Rogov et al. (2023) | |
Slovakia | |
| Jeleň et al. (2012) |
USA | |
| Musetti et al. (2023) |
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Clara Mine, Oberwolfach, Ortenaukreis, Freiburg Region, Baden-Württemberg, Germany