Znamenskyite
A valid IMA mineral species
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About Znamenskyite
Vladimir S. Znamensky
Formula:
Pb4In2Bi4S13
Colour:
Lead-grey
Lustre:
Metallic
Specific Gravity:
6.504 (Calculated)
Crystal System:
Orthorhombic
Name:
Named in honor of Vladimir Sergeevich Znamensky (Владимир Сергеевич Знаменский) (1939–2002), Russian geologist at IGEM who studied the geology and mineral deposits of the Kurile Islands. He was among first to conduct mineralogical research at the Kurdiavy volcano.
Known synthetic analogue.
Unique Identifiers
Mindat ID:
46157
Long-form identifier:
mindat:1:1:46157:1
GUID
(UUID V4):
(UUID V4):
638fafe5-2030-46b2-9db9-35698ba12e43
IMA Classification of Znamenskyite
Approved, Pending publication
Approval year:
2014
Classification of Znamenskyite
2.LB.55
2 : SULFIDES and SULFOSALTS (sulfides, selenides, tellurides; arsenides, antimonides, bismuthides; sulfarsenites, sulfantimonites, sulfbismuthites, etc.)
L : Unclassified Sulfosalts
B : With essential Pb
2 : SULFIDES and SULFOSALTS (sulfides, selenides, tellurides; arsenides, antimonides, bismuthides; sulfarsenites, sulfantimonites, sulfbismuthites, etc.)
L : Unclassified Sulfosalts
B : With essential 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 |
|---|---|---|
| Zms | 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 Znamenskyite
Metallic
Colour:
Lead-grey
Streak:
Black
Hardness:
VHN10=110 kg/mm2 - Vickers
Tenacity:
Very brittle
Fracture:
Irregular/Uneven, Hackly
Density:
6.504 g/cm3 (Calculated)
Optical Data of Znamenskyite
Bireflectance:
None
Reflectivity:
| Wavelength | R1 | R2 |
|---|---|---|
| 470nm | 38.4% | 35.6% |
| 546nm | 38.3% | 36.2% |
| 589nm | 37.1% | 35.4% |
| 650nm | 36.6% | 35.2% |
Graph shows reflectance levels at different wavelengths (in nm). Top of box is 100%. Peak reflectance is 38.4%.
R1 shown in black, R2 shown in red
Chemistry of Znamenskyite
Mindat Formula:
Pb4In2Bi4S13
Elements listed:
Crystallography of Znamenskyite
Crystal System:
Orthorhombic
Class (H-M):
mmm (2/m 2/m 2/m) - Dipyramidal
Space Group:
Pbam
Setting:
Pbam
Cell Parameters:
a = 21.331(4) Å, b = 26.435(5) Å, c = 4.006(1) Å
Ratio:
a:b:c = 0.807 : 1 : 0.152
Unit Cell V:
2258.92 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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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) |
|---|---|---|---|---|---|---|---|
| 0020219 | Znamenskyite | Kramer V (1986) Lead indium bismuth chalcogenides. III. Structure of Pb4In2Bi4S13 Acta Crystallographica C42 1089-1091 |  | 1986 | synthetic | 0 | 293 |
CIF Raw Data - click here to close
X-Ray Powder Diffraction
Powder Diffraction Data:
| d-spacing | Intensity |
|---|---|
| 3.98 Å | (70) |
| 3.56 Å | (60) |
| 3.37 Å | (80) |
| 3.239 Å | (40) |
| 2.936 Å | (40) |
| 2.743 Å | (100) |
| 2.008 Å | (50) |
| 1.719 Å | (30) |
Comments:
From Type Description.
Geological Environment
Paragenetic Mode(s):
| Paragenetic Mode | Earliest Age (Ga) |
|---|---|
| Stage 3a: Earth’s earliest Hadean crust | >4.50 |
| 11 : Volcanic fumarole minerals; reduced phases (see also #45) |
Type Occurrence of Znamenskyite
General Appearance of Type Material:
Druse-like aggregates of elongated slender plates to 0.4 mm long and 0.05 mm across, usually striated along elongation and easily split to needles. Box-shaped skeletal crystals are also ommon.
Place of Conservation of Type Material:
Type material is deposited in the collections of the Fersman Mineralogical Museum of the Russian Academy of Science, Moscow, Russia, registration number 4558/1
Geological Setting of Type Material:
High temperature fumarole 600–700 degrees C
Associated Minerals at Type Locality:
Synonyms of Znamenskyite
Related Minerals - Strunz-mindat Grouping
| 2.LB. | Ciriottiite | Cu(Cu,Ag)3Pb19(Sb,As)22(As2)S56 |
| 2.LB. | Hayyanite | Cu5Ag11Pb76Sb71As17(As2+)8S224 |
| 2.LB.05 | Miharaite | Cu4FePbBiS6 |
| 2.LB.30 | Ardaite | Pb19Sb13S35Cl7 |
| 2.LB.30 | Launayite | CuPb10(Sb,As)12S20 |
| 2.LB.30 | Madocite | Pb19(Sb,As)16S43 |
| 2.LB.30 | Playfairite | Pb16(Sb,As)19S44Cl |
| 2.LB.30 | Sorbyite | CuPb9(Sb,As)11S26 |
| 2.LB.30 | Sterryite | Cu(Ag,Cu)3Pb19(Sb,As)22(As-As)S56 |
| 2.LB.35 | Larosite | (Cu,Ag)21PbBiS13 |
| 2.LB.40 | Petrovicite | Cu3HgPbBiSe5 |
| 2.LB.40 | Mazzettiite | Ag3HgPbSbTe5 |
| 2.LB.45 | Crerarite | Pt2-x(Bi,Pb)11(S,Se)11 |
| 2.LB.50 | Quijarroite | Cu6HgPb2Bi4Se12 |
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 Znamenskyite
mindat.org URL:
https://www.mindat.org/min-46157.html
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References for Znamenskyite
Localities for Znamenskyite
symbol to view information about a locality.
The 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).
All localities listed without proper references should be considered as questionable.
Russia (TL) | |
|
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Kudriavy volcano, Iturup Island, Kurilsky District, Kuril Islands, Sakhalin Oblast, Russia