Lavrentievite
A valid IMA mineral species
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About Lavrentievite
Formula:
Hg2+3S2(Cl,Br)2
Colour:
Colorless to yellow
Lustre:
Adamantine, Vitreous
Hardness:
2 - 2½
Crystal System:
Monoclinic
Name:
Named by V.I. Vasil’ev, N.A. Pal’chik, and O.K. Grechishchev in 1984 in honor of Mikhail Alekseevich Lavrentiev (Михаи́л Алексе́евич Лавре́нтьев) (19 November 1900, Kazan, Russian Empire – 15 October 1980, Moscow, Soviet Union), mathematician and hydrodynamicist at the Institute of Hydrodynamics, Novosibirsk, Russia, and founder of the Siberian Academy of Science.
Co-Type Localities:
Polymorph of:
Unique Identifiers
Mindat ID:
2350
Long-form identifier:
mindat:1:1:2350:0
GUID
(UUID V4):
(UUID V4):
ea2e8684-e503-4978-be87-5221cd33e9d0
IMA Classification of Lavrentievite
Approved
IMA Formula:
Hg3S2Cl2
First published:
1984
Classification of Lavrentievite
2.FC.15a
2 : SULFIDES and SULFOSALTS (sulfides, selenides, tellurides; arsenides, antimonides, bismuthides; sulfarsenites, sulfantimonites, sulfbismuthites, etc.)
F : Sulfides of arsenic, alkalies; sulfides with halide, oxide, hydroxide, H2O
C : With Cl, Br, I (halide-sulfides)
2 : SULFIDES and SULFOSALTS (sulfides, selenides, tellurides; arsenides, antimonides, bismuthides; sulfarsenites, sulfantimonites, sulfbismuthites, etc.)
F : Sulfides of arsenic, alkalies; sulfides with halide, oxide, hydroxide, H2O
C : With Cl, Br, I (halide-sulfides)
10.3.4.1
10 : OXYHALIDES AND HYDROXYHALIDES
3 : A3(O,OH)2Xq
10 : OXYHALIDES AND HYDROXYHALIDES
3 : A3(O,OH)2Xq
6.5.3
6 : Sulphosalts - Sulphostannates, Sulphogermanates,Sulpharsenates, Sulphantimonates, Sulphovanadates and Sulphohalides
5 : Sulphohalides
6 : Sulphosalts - Sulphostannates, Sulphogermanates,Sulpharsenates, Sulphantimonates, Sulphovanadates and Sulphohalides
5 : Sulphohalides
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 |
---|---|---|
Lvr | 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 Lavrentievite
Chemistry of Lavrentievite
Mindat Formula:
Hg2+3S2(Cl,Br)2
Elements listed:
Crystallography of Lavrentievite
Crystal System:
Monoclinic
Cell Parameters:
a = 8.94(2) Å, b = 5.194(7) Å, c = 18.33(4) Å
β = 92.44(8)°
β = 92.44(8)°
Ratio:
a:b:c = 1.721 : 1 : 3.529
Unit Cell V:
850.37 ų (Calculated from Unit Cell)
Z:
5
Comment:
Space group P 2 /m, P 2 or Pm. Possibly triclinic.
Geological Environment
Paragenetic Mode(s):
Paragenetic Mode | Earliest Age (Ga) |
---|---|
Near-surface Processes | |
23 : Subaerial aqueous alteration by non-redox-sensitive fluids (see also #47) | |
High-𝑇 alteration and/or metamorphism | |
33 : Minerals deposited by hydrothermal metal-rich fluids (see also [#12]) |
Type Occurrence of Lavrentievite
Co-Type Localities:
General Appearance of Type Material:
As complex intergrowths with arzakite, to 0.2 mm.
Place of Conservation of Type Material:
Central Siberian Geological Museum, Novosibirsk, Russia.
Associated Minerals at Type Locality:
Reference:
Vasil’ev, V.I., Pal’chik, N.A., Grechishchev, O.K. (1984) Lavrentievite and arzakite, new natural mercury sulfohalides. Geologiya i Geofizika: 25: 54-63.
Synonyms of Lavrentievite
Other Language Names for Lavrentievite
German:Lavrentievit
Lawrentjewit
Lawrentjewit
Spanish:Lavrentievita
Lawrentjewita
Lawrentjewita
Relationship of Lavrentievite to other Species
Forms a series with:
Common Associates
Related Minerals - Strunz-mindat Grouping
2.FC. | Demicheleite-(I) | BiSI |
2.FC.05 | Djerfisherite | K6(Fe,Cu,Ni)25S26Cl |
2.FC.05 | Thalfenisite | Tl6(Fe,Ni,Cu)25S26Cl |
2.FC.05 | Owensite | (Ba,Pb)6(Cu,Fe,Ni)25S27 |
2.FC.05 | Cu-djerfisherite | K6(Cu,Fe)25S26Cl |
2.FC.05 | Zoharite | (Ba,K)6(Fe,Cu,Ni)25S27 |
2.FC.05 | Gmalimite | K6◻Fe2+24S27 |
2.FC.10 | Bartonite | K6Fe20S26S |
2.FC.10 | Chlorbartonite | K6Fe24S26(Cl,S) |
2.FC.15a | Arzakite | Hg2+3S2(Br,Cl)2 |
2.FC.15a | Corderoite | Hg2+3S2Cl2 |
2.FC.15c | Grechishchevite | Hg2+3S2(Br,Cl,I)2 |
2.FC.15d | Radtkeite | Hg2+3S2ICl |
2.FC.15b | Kenhsuite | Hg2+3S2Cl2 |
2.FC.20a | Capgaronnite | AgHgClS |
2.FC.20c | Perroudite | Hg5Ag4S5(I,Br)2Cl2 |
2.FC.20b | Iltisite | HgAgSCl |
2.FC.20d | Hanauerite | AgHgSI |
2.FC.25 | Demicheleite-(Br) | BiSBr |
2.FC.25 | Demicheleite-(Cl) | BiSCl |
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 Lavrentievite
mindat.org URL:
https://www.mindat.org/min-2350.html
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References for Lavrentievite
Localities for Lavrentievite
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.
Argentina | |
| Rudashevsky et al. (2018) |
Russia (TL) | |
| Pekov (1998) +1 other reference |
| Vasil’ev et al. (1984) +2 other references |
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Arzak Hg occurrence, Uyuk Range, Pi-Khem District, Tuva, Russia