Ferrovorontsovite
A valid IMA mineral species
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Formula:
(Fe5Cu)Σ6TlAs4S12
Colour:
Black
Lustre:
Metallic
Hardness:
3½
Specific Gravity:
4.744 (Calculated)
Crystal System:
Isometric
Member of:
Name:
For being the iron analogue of vorontsovite. The root name is for the type locality, but also honors the mining engineer Vladimir Vasilyevich Vorontsov (1842 – after 1908), superintendent of the Bogoslovskiy mining district.
Type Locality:
Isostructural with:
The Fe analogue of voronstovite and Fe-Tl analogue of galkhaite. Chemically similar to ferrostalderite.
Unique Identifiers
Mindat ID:
51817
Long-form identifier:
mindat:1:1:51817:0
GUID
(UUID V4):
(UUID V4):
9cd29a59-b8ff-4321-8120-b6f5a2efb37a
IMA Classification of Ferrovorontsovite
Approved
IMA Formula:
(Fe5Cu)TlAs4S12
Approval year:
2017
First published:
2018
Type description reference:
Kasatkin, Anatoly, Nestola, Fabrizio, Agakhanov, Atali, Škoda, Radek, Karpenko, Vladimir, Tsyganko, Mikhail, Plášil, Jakub (2018) Vorontsovite, (Hg5Cu)Σ6TlAs4S12, and Ferrovorontsovite, (Fe5Cu)Σ6TlAs4S12: The Tl- and Tl-Fe-Analogues of Galkhaite from the Vorontsovskoe Gold Deposit, Northern Urals, Russia. Minerals, 8 (5) 185 doi:10.3390/min8050185
Classification of Ferrovorontsovite
2.GB.20
2 : SULFIDES and SULFOSALTS (sulfides, selenides, tellurides; arsenides, antimonides, bismuthides; sulfarsenites, sulfantimonites, sulfbismuthites, etc.)
G : Sulfarsenites, sulfantimonites, sulfbismuthites
B : Neso-sulfarsenites, etc. with additional S
2 : SULFIDES and SULFOSALTS (sulfides, selenides, tellurides; arsenides, antimonides, bismuthides; sulfarsenites, sulfantimonites, sulfbismuthites, etc.)
G : Sulfarsenites, sulfantimonites, sulfbismuthites
B : Neso-sulfarsenites, etc. with additional S
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 |
---|---|---|
Fvor | 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 Ferrovorontsovite
Metallic
Transparency:
Opaque
Colour:
Black
Streak:
Black
Hardness:
3½ on Mohs scale
Hardness:
VHN10=166 - 174 kg/mm2 - Vickers
Tenacity:
Brittle
Cleavage:
None Observed
Parting:
None observed
Fracture:
Irregular/Uneven
Density:
4.744 g/cm3 (Calculated)
Optical Data of Ferrovorontsovite
Bireflectance:
None observed
Reflectivity:
Wavelength | R |
---|---|
400nm | 24.90% |
420nm | 25.02% |
440nm | 25.21% |
460nm | 25.43% |
470nm | 25.54% |
480nm | 25.64% |
500nm | 25.87% |
520nm | 26.11% |
540nm | 26.41% |
546nm | 26.49% |
560nm | 26.71% |
580nm | 27.06% |
589nm | 27.26% |
600nm | 27.47% |
620nm | 27.52% |
640nm | 27.83% |
650nm | 27.90% |
660nm | 27.98% |
680nm | 28.39% |
700nm | 28.83% |
Graph shows reflectance levels at different wavelengths (in nm). Top of box is 100%. Peak reflectance is 28.83%.
Colour in reflected light:
Light gray
Internal Reflections:
None observed
Pleochroism:
Non-pleochroic
Chemistry of Ferrovorontsovite
Mindat Formula:
(Fe5Cu)Σ6TlAs4S12
Crystallography of Ferrovorontsovite
Crystal System:
Isometric
Class (H-M):
4 3m - Hextetrahedral
Space Group:
I4 3m
Cell Parameters:
a = 10.2390(7) Å
Unit Cell V:
1,073.43 ų (Calculated from Unit Cell)
X-Ray Powder Diffraction
Powder Diffraction Data:
d-spacing | Intensity |
---|---|
4.175 Å | (93) |
3.646 Å | (13) |
2.952 Å | (100) |
2.735 Å | (57) |
2.562 Å | (18) |
1.869 Å | (11) |
1.810 Å | (40) |
1.543 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 Ferrovorontsovite
General Appearance of Type Material:
Black anhedral grains to 0.2 mm in dolomite-calcite matrix.
Place of Conservation of Type Material:
Type material is deposited in the collections of the Fersman Mineralogical Museum, Russian Academy of Sciences, Moscow, Russia, registration number 4976/1.
Reference:
Kasatkin, Anatoly V., Nestola, F., Agakhanov, A.A., Škoda, R., Karpenko, V.Y., Tsyganko, M.V., Plášil, J. (2018) Vorontsovite, (Hg5Cu)S6TlAs4S12, and Ferrovorontsovite, (Fe5Cu)S6TlAs4S12: The Tl- and Tl-Fe-Analogues of Galkhaite from the Vorontsovskoe Gold Deposit, Northern Urals, Russia. Minerals 2018: 8(5): 185.
Synonyms of Ferrovorontsovite
Relationship of Ferrovorontsovite to other Species
Member of:
Other Members of this group:
Galkhaite | (Hg5Cu)CsAs4S12 | Iso. 4 3m : I4 3m |
Vorontsovite | (Hg5Cu)Σ6TlAs4S12 | Iso. 4 3m : I4 3m |
Related Minerals - Strunz-mindat Grouping
2.GB. | Polybasite-Tac | |
2.GB. | Argentotetrahedrite-(Hg) | Ag6(Cu4Hg2)Sb4S12S |
2.GB. | Hakite-(Zn) | Cu6(Cu4Zn2)Sb4Se12Se |
2.GB. | Hakite-(Cd) | Cu6(Cu4Cd2)Sb4Se12Se |
2.GB. | Argentotetrahedrite-(Zn) | Ag6(Cu4Zn2)Sb4S12S |
2.GB. | Pošepnýite | (Cu+3◻3)(Hg2+4Cu+2)Sb4Se12(Se0.5◻0.5) |
2.GB. | Argentopearceite | Ag16As2S11 |
2.GB. | Zvěstovite-(Zn) | Ag6(Ag4Zn2)As4S12S |
2.GB. | Kenoargentotennantite-(Fe) | [Ag6]4+(Cu4Fe2)As4S12◻ |
2.GB. | Tennantite-(Hg) | Cu6(Cu4Hg2)As4S12S |
2.GB. | Kenoargentotetrahedrite-(Zn) | [Ag6]4+(Cu4Zn2)Sb4S12◻ |
2.GB. | Tennantite-(Cu) | Cu6(Cu4Cu2)As4S12S |
2.GB. | Stibiogoldfieldite | (Cu4Cu2)(Cu4Cu+2)(Sb2Te2)S12S |
2.GB. | Tennantite-(Ni) | Cu6(Cu4Ni2)As4S12S |
2.GB. | Tetrahedrite-(Ni) | Cu6(Cu4Ni2)Sb4S12S |
2.GB. | Stibioústalečite | (Cu4Cu2)(Cu4Cu+2)(Sb2Te2)Se12Se |
2.GB. | Arsenogoldfieldite | (Cu4Cu2)(Cu4Cu+2)(As2Te2)S12S |
2.GB. | Tennantite-(In) | Cu6(Cu4(In3+Cu+))As4S12S |
2.GB. | Tennantite-(Cd) | Cu6(Cu4Cd2)As4S12S |
2.GB. | Tetrahedrite-(Mn) | Cu6(Cu4Mn2)Sb4S12S |
2.GB. | Argentopolybasite | [Ag6Sb2S7][Ag9AgS4] |
2.GB.X | Kenorozhdestvenskayaite-(Fe) | [Ag6]4+(Ag4Fe2+2)Sb4S12◻ |
2.GB. | Argentotetrahedrite-(Cd) | Ag6(Cu4Cd2)Sb4S12S |
2.GB. | Tennantite-(Mn) | Cu6(Cu4Mn2)As4S12S |
2.GB. | Zvěstovite-(Fe) | Ag6(Ag4Fe2+2)As4S12S |
2.GB. | Hakite-(Fe) | Cu6(Cu4Fe2+2)Sb4Se12Se |
2.GB. | Tetrahedrite-(Cu) | Cu6(Cu4Cu2+2)Sb4S12S |
2.GB. | Arsenoústalečite | (Cu4Cu2)(Cu4Cu+2)(As2Te2)Se12Se |
2.GB. | Tetrahedrite-(Cd) | Cu6(Cu4Cd2)Sb4S12S |
2.GB.05 | Argentotennantite-(Zn) | Ag6(Cu4Zn2)As4S12S |
2.GB.05 | Freibergite Subgroup | (Ag6,[Ag6]4+)(Cu4 C2+2)Sb4S12S0-1 |
2.GB.05 | Giraudite-(Zn) | Cu6(Cu4Zn2)As4Se12Se |
2.GB.05 | Goldfieldite | (Cu4◻2)(Cu4Cu+2)Te4S12S |
2.GB.05 | Hakite-(Hg) | Cu6(Cu4Hg2)Sb4Se12Se |
2.GB.05 | Tennantite Subgroup | Cu6(Cu4C2+2)As4S12S |
2.GB.05 | Tetrahedrite Subgroup | Cu6(Cu4C2+2)Sb4S12S |
2.GB.05 | Argentotetrahedrite-(Fe) | Ag6(Cu4Fe2)Sb4S12S |
2.GB.05 | Rozhdestvenskayaite-(Zn) | Ag6(Ag4Zn2)Sb4S12S |
2.GB.05 | UM1992-21-S:AgFeSb | Ag6(Ag4Fe2+2)Sb4S12S |
2.GB.05 | Tennantite-(Zn) | Cu6(Cu4Zn2)As4S12S |
2.GB.05 | Tetrahedrite-(Zn) | Cu6(Cu4Zn2)Sb4S12S |
2.GB.05 | Tennantite-(Fe) | Cu6(Cu4Fe2+2)As4S12S |
2.GB.05 | Tetrahedrite-(Fe) | Cu6(Cu4Fe2+2)Sb4S12S |
2.GB.05 | Kenoargentotetrahedrite-(Fe) | [Ag6]4+(Cu4Fe2+2)Sb4S12◻ |
2.GB.05 | Tetrahedrite-(Hg) | Cu6(Cu4Hg2)Sb4S12S |
2.GB.10 | Selenostephanite | Ag5SbSe4 |
2.GB.10 | Stephanite | Ag5SbS4 |
2.GB.15 | Pearceite | [Ag6As2S7][Ag9CuS4] |
2.GB.15 | Polybasite | [Ag6Sb2S7][Ag9CuS4] |
2.GB.15 | UM2003-14-S:AgBiFeTe | Ag16FeBiTe3S8 |
2.GB.15 | Selenopolybasite | [(Ag,Cu)6(Sb,As)2(S,Se)7][Ag9Cu(S,Se)2Se2] |
2.GB.15 | Cupropearceite | [Cu6As2S7][Ag9CuS4] |
2.GB.15 | Cupropolybasite | [Cu6Sb2S7][Ag9CuS4] |
2.GB.15 | UM1979-17-S:BiCuFe | ~Cu18Fe4BiS16 |
2.GB.20 | Galkhaite | (Hg5Cu)CsAs4S12 |
2.GB.20 | Vorontsovite | (Hg5Cu)Σ6TlAs4S12 |
Fluorescence of Ferrovorontsovite
None observed
Other Information
Notes:
Insoluble in acids and alkalis
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 Ferrovorontsovite
mindat.org URL:
https://www.mindat.org/min-51817.html
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References for Ferrovorontsovite
Reference List:
Hålenius, U., Hatert, F., Pasero, M., Mills, S. J. (2017) New minerals and nomenclature modifications approved in 2017, CNMNC Newsletter No 37. Mineralogical Magazine, 81 (3) 737-742 doi:10.1180/minmag.2017.081.039
Kasatkin, Anatoly, Nestola, Fabrizio, Agakhanov, Atali, Škoda, Radek, Karpenko, Vladimir, Tsyganko, Mikhail, Plášil, Jakub (2018) Vorontsovite, (Hg5Cu)Σ6TlAs4S12, and Ferrovorontsovite, (Fe5Cu)Σ6TlAs4S12: The Tl- and Tl-Fe-Analogues of Galkhaite from the Vorontsovskoe Gold Deposit, Northern Urals, Russia. Minerals, 8 (5) 185 doi:10.3390/min8050185
Kasatkin, Anatoly, Nestola, Fabrizio, Agakhanov, Atali, Škoda, Radek, Karpenko, Vladimir, Tsyganko, Mikhail, Plášil, Jakub (2018) Vorontsovite, (Hg5Cu)Σ6TlAs4S12, and Ferrovorontsovite, (Fe5Cu)Σ6TlAs4S12: The Tl- and Tl-Fe-Analogues of Galkhaite from the Vorontsovskoe Gold Deposit, Northern Urals, Russia. Minerals, 8 (5) 185 doi:10.3390/min8050185
Localities for Ferrovorontsovite
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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