Log In
Boevskite
A valid IMA mineral species
This page is currently not sponsored. Click here to sponsor this page.
Formula:
Pb4(TeO3)2(SO4)(S2O3)
Colour:
colourless
Lustre:
Adamantine
Hardness:
2½ - 3
Specific Gravity:
6.599 (Calculated)
Crystal System:
Orthorhombic
Name:
After the type locality
Boevskite has a unique structure formed by Te–Pb–O layers coplanar to the ac plane with thiosulfate groups and SO4 tetrahedra located between them. This is the first mineral having both sulfate and thiosulfate groups as species-defining constituents
Unique Identifiers
Mindat ID:
471414
Long-form identifier:
mindat:1:1:471414:5
IMA Classification of Boevskite
Approved
IMA Formula:
Pb2+4(Te4+O3)2(S6+O4)(S6+O3S2-)
Approval year:
2024
First published:
2025
Type description reference:
Kasatkin, Anatoly V.; Zubkova, Natalia V.; Škoda, Radek; Gurzhiy, Vladislav V.; Nestola, Fabrizio; Biagioni, Cristian; Agakhanov, Atali A.; Britvin, Sergey N.; Plášil, Jakub; Kuznetsov, Aleksey M. (2025) Boevskite, Pb4(TeO3)2(SO4)(S2O3), the first mixed sulfate–thiosulfate mineral from the Boevskoe deposit, Southern Urals, Russia. Mineralogical Magazine, 1-22 doi:10.1180/mgm.2025.10143
Classification of Boevskite
7.JA.
7 : SULFATES (selenates, tellurates, chromates, molybdates, wolframates)
J : Thiosulfates
A : Thiosulfates of Pb
7 : SULFATES (selenates, tellurates, chromates, molybdates, wolframates)
J : Thiosulfates
A : Thiosulfates of 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 for Standard |
|---|---|---|
| Boe | 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 Boevskite
Adamantine
Transparency:
Transparent
Colour:
Colourless
Streak:
White
Hardness:
2½ - 3 on Mohs scale
Hardness:
VHN10=110 kg/mm2 - Vickers
Tenacity:
Brittle
Cleavage:
None Observed
Parting:
none
Fracture:
Irregular/Uneven
Density:
6.599 g/cm3 (Calculated)
Optical Data of Boevskite
Type:
Biaxial
Anisotropism:
weak in gray tones
Bireflectance:
none
Reflectivity:
| Wavelength | R1 (%) | R2 (%) |
|---|---|---|
| 470nm | 14.7 % | 14.1% |
| 546nm | 13.5% | 13.1% |
| 589nm | 13.5% | 13.2% |
| 650nm | 13.8% | 13.2% |
Graph shows reflectance levels at different wavelengths (in nm). Peak reflectance is 14.7 %.
R1 shown in black, R2 shown in red
Colour in reflected light:
grey
Internal Reflections:
none
Pleochroism:
Non-pleochroic
Comments:
The mean refractive index calculated using the Gladstone-Dale equation is 2.08.
Chemistry of Boevskite
Mindat Formula:
Pb4(TeO3)2(SO4)(S2O3)
Element Weights:
Elements listed:
Crystallography of Boevskite
Crystal System:
Orthorhombic
Class (H-M):
mmm(2/m2/m2/m) - Dipyramidal
Space Group:
Pnma
Setting:
Pnma
Cell Parameters:
a = 9.7764(7) Å, b = 13.3622(10) Å, c = 10.7213(9) Å
Ratio:
a:b:c = 0.732 : 1 : 0.802
Unit Cell V:
1,400.57 ų (Calculated from Unit Cell)
Z:
4
X-Ray Powder Diffraction
Powder Diffraction Data:
| d-spacing | Intensity |
|---|---|
| 6.683 Å | (65) |
| 3.355 Å | (44) |
| 3.344 Å | (52) |
| 3.289 Å | (60) |
| 3.230 Å | (100) |
| 3.144 Å | (92) |
| 3.120 Å | (51) |
| 2.787 Å | (50) |
Reference:
Kasatkin, Anatoly V.; Zubkova, Natalia V.; Škoda, Radek; Gurzhiy, Vladislav V.; Nestola, Fabrizio; Biagioni, Cristian; Agakhanov, Atali A.; Britvin, Sergey N.; Plášil, Jakub; Kuznetsov, Aleksey M. (2025) Boevskite, Pb4(TeO3)2(SO4)(S2O3), the first mixed sulfate–thiosulfate mineral from the Boevskoe deposit, Southern Urals, Russia. Mineralogical Magazine, 1-22 doi:10.1180/mgm.2025.10143
Type Occurrence of Boevskite
General Appearance of Type Material:
euhedral grains up to 0.25 mm at the contact of galena and pyrite, as inclusions in galena up to 0.2 mm, and as thin veinlets up to 0.2 × 0.03 mm filling cracks in sphalerite.
Place of Conservation of Type Material:
Type material is deposited in the collections of the Fersman Mineralogical Museum, Russian Academy of Sciences, Leninskiy Prospekt 18-2, Moscow 119071, Russia, registration number 6127/1
Geological Setting of Type Material:
The presence of sulfides in the ores of the deposit along with fluorite led to the formation of sulfuric and hydrofluoric acids in the oxidation zone and the active development of supergene processes to a depth of 100 meters.
The new mineral was formed as a result of the supergene alteration of the co-existing galena and tellurides (empressite, hessite, ingodite, joséite-B) in the oxidation zone.
The new mineral was formed as a result of the supergene alteration of the co-existing galena and tellurides (empressite, hessite, ingodite, joséite-B) in the oxidation zone.
Associated Minerals at Type Locality:
Reference:
Kasatkin, Anatoly V.; Zubkova, Natalia V.; Škoda, Radek; Gurzhiy, Vladislav V.; Nestola, Fabrizio; Biagioni, Cristian; Agakhanov, Atali A.; Britvin, Sergey N.; Plášil, Jakub; Kuznetsov, Aleksey M. (2025) Boevskite, Pb4(TeO3)2(SO4)(S2O3), the first mixed sulfate–thiosulfate mineral from the Boevskoe deposit, Southern Urals, Russia. Mineralogical Magazine, 1-22 doi:10.1180/mgm.2025.10143
Synonyms of Boevskite
Other Language Names for Boevskite
Related Minerals - Strunz-mindat Grouping
| 7.JA. | Hayelasdiite | [Pb4O1.5(OH)2.5]2[Cu+5(S2O3)4(S2O2OH)2(H2O)] · 4H2O |
| 7.JA. | Boojumite | Pb8O4(OH)2(S2O3)3 |
| 7.JA. | Finescreekite | [Pb4(OH)4](S2O3)2 |
| 7.JA. | Redmondite | [Pb8O2Zn(OH)6](S2O3)4 |
| 7.JA. | Hydroredmondite | [Pb8O2Zn(OH)6](S2O3)4 · 2H2O |
| 7.JA. | Dinilawiite | [Pb4OAl(OH)6]2(S2O3)2 · (S2O3)(H2O)5 |
| 7.JA. | Sulfatoredmondite | [Pb8O2Zn(OH)6](SO4)4 · 6H2O |
| 7.JA. | Cubothioplumbite | [Pb4(OH)4]Pb(S2O3)3 |
| 7.JA. | Hexathioplumbite | [Pb2+4(OH)4]Pb2+(S6+O3S2-)3 |
| 7.JA.05 | Sidpietersite | Pb2+4(S2O3)O2(OH)2 |
| 7.JA.10 | Steverustite | Pb2+5(OH)5[Cu+(S6+O3S2-)3](H2O)2 |
| 7.JA.15 | Fassinaite | Pb2(S2O3)(CO3) |
| 7.JA.20 | Northstarite | Pb6(Te4+O3)5(S6+O3S2-) |
Fluorescence of Boevskite
It does not fluoresce under ultraviolet light.
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 Boevskite
mindat.org URL:
https://www.mindat.org/min-471414.html
Please feel free to link to this page.
Please feel free to link to this page.
Search Engines:
External Links:
Mineral Dealers:
References for Boevskite
Reference List:
Kasatkin, Anatoly V.; Zubkova, Natalia V.; Škoda, Radek; Gurzhiy, Vladislav V.; Nestola, Fabrizio; Biagioni, Cristian; Agakhanov, Atali A.; Britvin, Sergey N.; Plášil, Jakub; Kuznetsov, Aleksey M. (2025) Boevskite, Pb4(TeO3)2(SO4)(S2O3), the first mixed sulfate–thiosulfate mineral from the Boevskoe deposit, Southern Urals, Russia. Mineralogical Magazine, 1-22 doi:10.1180/mgm.2025.10143
Localities for Boevskite
Showing 1 localities.
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) | |
| Kasatkin +2 other references |
