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Lavrentievite
A valid IMA mineral species
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About Lavrentievite
Mikhail A. Lavrentiev
Formula:
Hg3S2Cl2
Cl is partially replaced by (stabilising?) Br.
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
IMA Classification of Lavrentievite
Approved
Approval year:
1984
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 for Standard |
|---|---|---|
| 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:
Hg3S2Cl2
Cl is partially replaced by (stabilising?) Br.
Cl is partially replaced by (stabilising?) Br.
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:
Synonyms of Lavrentievite
Other Language Names for Lavrentievite
Relationship of Lavrentievite to other Species
Forms a series with:
Common Associates
Associations Based on Photo Data:
| 1 photo of Lavrentievite associated with Cinnabar | HgS |
| 1 photo of Lavrentievite associated with Grechishchevite | Hg2+3S2(Br,Cl,I)2 |
Related Minerals - Strunz-mindat Grouping
| 2.FC. | Demicheleite-(I) | BiSI |
| 2.FC.05 | Djerfisherite | K6(Fe,Cu,Ni)25S26Cl |
| 2.FC.05 | Owensite | (Ba,Pb)6(Cu,Fe,Ni)25S27 |
| 2.FC.05 | Thalfenisite | Tl6(Fe,Ni,Cu)25S26Cl |
| 2.FC.05 | Gmalimite | K6◻Fe2+24S27 |
| 2.FC.05 | 'Cu-djerfisherite' | K6(Cu,Fe)25S26Cl |
| 2.FC.05 | Zoharite | (Ba,K)6(Fe,Cu,Ni)25S27 |
| 2.FC.10 | Bartonite | K6Fe20S26S |
| 2.FC.10 | Chlorbartonite | K6Fe24S26(Cl,S) |
| 2.FC.15d | Radtkeite | Hg2+3S2ICl |
| 2.FC.15a | Corderoite | Hg2+3S2Cl2 |
| 2.FC.15a | 'Arzakite' | Hg2+3S2(Br,Cl)2 |
| 2.FC.15c | Grechishchevite | Hg2+3S2(Br,Cl,I)2 |
| 2.FC.15b | Kenhsuite | Hg2+3S2Cl2 |
| 2.FC.20b | Iltisite | HgAgSCl |
| 2.FC.20c | Perroudite | Hg5Ag4S5(I,Br)2Cl2 |
| 2.FC.20a | Capgaronnite | AgHgClS |
| 2.FC.20d | Hanauerite | AgHgSI |
| 2.FC.25 | Demicheleite-(Cl) | BiSCl |
| 2.FC.25 | Demicheleite-(Br) | BiSBr |
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
Showing 3 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.
Argentina | |
| Rudashevsky et al. (2018) |
Russia (TL) | |
| Pekov (1998) +1 other reference |
| Vasil’ev et al. (1984) +2 other references |
Quick NavTopAbout LavrentieviteUnique IdentifiersIMA Classification Classification Mineral SymbolsPhysical Properties Chemistry Crystallography Geological EnvironmentType Occurrence SynonymsOther LanguagesRelationshipsCommon AssociatesStrunz-MindatOther InformationInternet Links References Localities Locality List
Kadyrel' Hg occurrence, Oorash-Khem River Valley, Uyuk Range, Pi-Khem District, Tuva, Russia