Kudriavite
A valid IMA mineral species
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About Kudriavite
Summit of Kudriavy volcano
Kudriavy volcano, Iturup Island, Kurilsky District, Kuril Islands, Sakhalin Oblast, Russia
Kudriavy volcano, Iturup Island, Kurilsky District, Kuril Islands, Sakhalin Oblast, Russia
Formula:
(Cd,Pb)Bi2S4
Colour:
dark grey with a slightly reddish hue
Lustre:
Metallic
Specific Gravity:
6.58 (Calculated)
Crystal System:
Monoclinic
Name:
For the Russian name of its type locality, Kudriavy volcano.
The Cd analogue of grumiplucite. One of 2 approved Cd-Bi-bearing minerals, with tazieffite being the other one.
Compare UM1993-16-S:CdInZn and UM1993-15-S:CdInZn.
Compare UM1993-16-S:CdInZn and UM1993-15-S:CdInZn.
Unique Identifiers
Mindat ID:
26708
Long-form identifier:
mindat:1:1:26708:1
GUID
(UUID V4):
(UUID V4):
7c463cec-5897-4da9-a34b-78fe65005ed4
Classification of Kudriavite
Approved
Approval year:
2003
First published:
2005
2.JA.05c
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
Mineral Symbols
As of 2021 there are now IMA–CNMNC approved mineral symbols (abbreviations) for each mineral species, useful for tables and diagrams.
Symbol | Source | Reference |
---|---|---|
Kdv | 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 Kudriavite
Metallic
Transparency:
Opaque
Colour:
dark grey with a slightly reddish hue
Streak:
black
Hardness:
VHN100=129 kg/mm2 - Vickers
Hardness Data:
Measured
Tenacity:
Very brittle
Cleavage:
None Observed
Fracture:
Irregular/Uneven
Density:
6.58 g/cm3 (Calculated)
Optical Data of Kudriavite
Anisotropism:
strong
Bireflectance:
weak to distinct
Reflectivity:
Wavelength | R1 | R2 |
---|---|---|
400nm | 21.0% | 30.3% |
420nm | 23.5% | 32.1% |
440nm | 26.1% | 33.8% |
460nm | 28.5% | 35.6% |
470nm | 29.6% | 36.4% |
480nm | 30.4% | 36.9% |
500nm | 31.5% | 37.9% |
520nm | 32.1% | 38.4% |
540nm | 32.3% | 38.7% |
546nm | 32.4% | 38.8% |
560nm | 32.3% | 38.7% |
580nm | 32.0% | 38.3% |
589nm | 31.8% | 38.2% |
600nm | 31.7% | 38.2% |
620nm | 31.6% | 38.1% |
640nm | 31.5% | 37.8% |
650nm | 31.4% | 37.7% |
660nm | 31.4% | 37.6% |
680nm | 31.3% | 37.5% |
700nm | 31.3% | 37.3% |
Graph shows reflectance levels at different wavelengths (in nm). Top of box is 100%. Peak reflectance is 38.8%.
R1 shown in black, R2 shown in red
Colour in reflected light:
white with a slight yellow hue
Internal Reflections:
none
Pleochroism:
Non-pleochroic
Chemical Properties of Kudriavite
Formula:
(Cd,Pb)Bi2S4
Elements listed:
Crystallography of Kudriavite
Crystal System:
Monoclinic
Class (H-M):
2/m - Prismatic
Space Group:
B2/m
Setting:
C2/m
Cell Parameters:
a = 13.095(1) Å, b = 4.0032(3) Å, c = 14.711(1) Å
β = 115.59°
β = 115.59°
Ratio:
a:b:c = 3.271 : 1 : 3.675
Unit Cell V:
695.5 ų
Z:
4
Crystal Structure
Load
Unit Cell | Unit Cell Packed
2x2x2 | 3x3x3 | 4x4x4
Unit Cell | Unit Cell Packed
2x2x2 | 3x3x3 | 4x4x4
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CIF File Best | x | y | z | a | b | c
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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) |
---|---|---|---|---|---|---|---|
0006143 | Kudriavite | Balic-Zunic T, Makovicky E (2007) The crystal structure of kudriavite, (Cd,Pb)Bi2S4 The Canadian Mineralogist 45 437-443 | 2007 | 0 | 293 |
CIF Raw Data - click here to close
X-Ray Powder Diffraction
Powder Diffraction Data:
d-spacing | Intensity |
---|---|
3.715 Å | (m) |
3.632 Å | (m) |
3.520 Å | (s) |
3.274 Å | (s) |
3.169 Å | (m) |
2.948 Å | (s) |
2.809 Å | (s) |
2.346 Å | (m) |
Geological Environment
Paragenetic Mode(s):
Paragenetic Mode | Earliest Age (Ga) |
---|---|
High-? alteration and/or metamorphism | |
33 : Minerals deposited by hydrothermal metal-rich fluids (see also [#12]) |
Type Occurrence of Kudriavite
General Appearance of Type Material:
Platy opaque crystals up to 0.4x0.2x0.02 mm, which form chaotic aggregates in pores and fissures of the fumarolic crust.
Place of Conservation of Type Material:
Fersman Mineralogical Museum, Russian Academy of Sciences, Moscow, Russia, No. 3112/1.
Geological Setting of Type Material:
Volcanic fumaroles
Associated Minerals at Type Locality:
Reference:
Chaplygin, I.V., Mozgova, N.N., Magazina, L.O., Kuznetsova, O.Yu., Safonov, Yu.G., Bryzgalov, I.A., Makovcký, E., Balić-Žunić, T. (2005): Kudriavite, (Cd,Pb)Bi2S4, a new mineral species from Kudriavy volcano, Iturup Island, Kuriles. The Canadian Mineralogist: 43: 695-701.
Synonyms of Kudriavite
Other Language Names for Kudriavite
Common Associates
Associated Minerals Based on Photo Data:
3 photos of Kudriavite associated with Greenockite | CdS |
1 photo of Kudriavite associated with Tazieffite | Pb20Cd2(As,Bi)22S50Cl10 |
1 photo of Kudriavite associated with Pyrite | FeS2 |
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.05a | Cupromakopavonite | Ag3Cu8Pb4Bi19S38 |
2.JA.05 | Dantopaite | Ag5Bi13S22 |
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 Kudriavite
mindat.org URL:
https://www.mindat.org/min-26708.html
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References for Kudriavite
Reference List:
Localities for Kudriavite
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.
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Kudriavy volcano, Iturup Island, Kurilsky District, Kuril Islands, Sakhalin Oblast, Russia