Kuzminite
A valid IMA mineral species
This page is currently not sponsored. Click here to sponsor this page.
About Kuzminite
Aleksei M. Kuzmin
Formula:
[Hg2]2+(Br,Cl)2
Colour:
Colorless, bluish gray or dull white, sometimes with weak brown tint.
Lustre:
Adamantine
Hardness:
1½
Specific Gravity:
7.36 (Calculated)
Crystal System:
Tetragonal
Member of:
Name:
Named by in in honor of Aleksei (Alexei) Mikhailovich Kuzmin (29 March 1891, Ufa, Russia - 28 August 1980), Russian mineralogist of the Tomsk Polytechnic Institute, Tomsk, Russia.
Unique Identifiers
Mindat ID:
2300
Long-form identifier:
mindat:1:1:2300:5
GUID
(UUID V4):
(UUID V4):
08323f76-0d3b-475d-98ce-902188e1d58d
IMA Classification of Kuzminite
Approved
IMA Formula:
HgBr
Approval year:
1986
First published:
1986
Classification of Kuzminite
3.AA.30
3 : HALIDES
A : Simple halides, without H2O
A : M:X = 1:1, 2:3, 3:5, etc.
3 : HALIDES
A : Simple halides, without H2O
A : M:X = 1:1, 2:3, 3:5, etc.
9.1.8.2
9 : NORMAL HALIDES
1 : AX
9 : NORMAL HALIDES
1 : AX
8.5.9
8 : Halides - Fluorides, Chlorides, Bromides and Iodides; also Fluoborates and Fluosilicates
5 : Halides of Zn and Hg
8 : Halides - Fluorides, Chlorides, Bromides and Iodides; also Fluoborates and Fluosilicates
5 : Halides of Zn and Hg
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 |
|---|---|---|
| Kzm | IMA–CNMNC | Warr, L.N. (2021). IMA–CNMNC approved mineral symbols. Mineralogical Magazine, 85(3), 291-320. doi:10.1180/mgm.2021.43 |
Pronunciation of Kuzminite
Pronunciation:
| Play | Recorded by | Country |
|---|---|---|
| Jolyon & Katya Ralph | United Kingdom |
Physical Properties of Kuzminite
Adamantine
Transparency:
Transparent
Colour:
Colorless, bluish gray or dull white, sometimes with weak brown tint.
Streak:
Yellowish or creamy white
Hardness:
1½ on Mohs scale
Hardness:
VHN25=21 - 29 kg/mm2 - Vickers
Cleavage:
Distinct/Good
good {100}
good {100}
Fracture:
Irregular/Uneven
Density:
7.36 g/cm3 (Calculated)
Comment:
Density not measured
Optical Data of Kuzminite
Type:
Uniaxial (+)
Anisotropism:
Yellowish gray, grayish brown, and bluish gray
Bireflectance:
Strong, R1 gray, R2 grayish white, R1 lower than R2, similar to those of eglestonite.
Colour in reflected light:
Colorless or weak yellow
Pleochroism:
Weak
Comments:
Light yellow to very pale brown
Comments:
In transmitted light, indistinguishable from calomel.
n = > 2.00
n = > 2.00
Chemistry of Kuzminite
Mindat Formula:
[Hg2]2+(Br,Cl)2
Elements listed:
Crystallography of Kuzminite
Crystal System:
Tetragonal
Class (H-M):
4/mmm (4/m 2/m 2/m) - Ditetragonal Dipyramidal
Space Group:
I4/mmm
Setting:
I4/mmm
Cell Parameters:
a = 4.597(5) Å, c = 11.034(8) Å
Ratio:
a:c = 1 : 2.4
Unit Cell V:
233.18 ų (Calculated from Unit Cell)
Z:
4
Crystal Structure
Load
Unit Cell | Unit Cell Packed
2x2x2 | 3x3x3 | 4x4x4
Unit Cell | Unit Cell Packed
2x2x2 | 3x3x3 | 4x4x4
Show
Big Balls | Small Balls | Just Balls | Spacefill
Polyhedra Off | Si Polyhedra | All Polyhedra
Remove metal-metal sticks
Big Balls | Small Balls | Just Balls | Spacefill
Polyhedra Off | Si Polyhedra | All Polyhedra
Remove metal-metal sticks
Display Options
Black Background | White Background
Perspective On | Perspective Off
2D | Stereo | Red-Blue | Red-Cyan
Black Background | White Background
Perspective On | Perspective Off
2D | Stereo | Red-Blue | Red-Cyan
View
CIF File Best | x | y | z | a | b | c
CIF File Best | x | y | z | a | b | c
Rotation
Stop | Start
Stop | Start
Labels
Console Off | On | Grey | Yellow
Console Off | On | Grey | Yellow
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) |
|---|---|---|---|---|---|---|---|
| 0011657 | Kuzminite | Wyckoff R W G (1963) Second edition. Interscience Publishers, New York, New York Crystal Structures 1 85-237 | 1963 | 0 | 293 | ||
| 0017969 | Kuzminite | Havighurst R (1925) Crystal structure of the mercurous halides _cod_database_code 1011070 American Journal of Science 10 15-28 | 1925 | 0 | 293 | ||
| 0017975 | Kuzminite | Havighurst R (1926) Parameters in crystal structure. The mercurouos halides _cod_database_code 1011077 Journal of the American Chemical Society 48 2113-2131 | 1926 | 0 | 293 |
CIF Raw Data - click here to close
X-Ray Powder Diffraction
Powder Diffraction Data:
| d-spacing | Intensity |
|---|---|
| 3.25 Å | (100) |
| 4.26 Å | (55) |
| 2.103 Å | (50) |
| 2.76 Å | (40) |
| 1.989 Å | (35) |
| 2.296 Å | (25b) |
| 1.768 Å | (20) |
Geological Environment
Paragenetic Mode(s):
| Paragenetic Mode | Earliest Age (Ga) |
|---|---|
| Stage 7: Great Oxidation Event | <2.4 |
| 47a : [Near-surface hydration of prior minerals] |
Type Occurrence of Kuzminite
General Appearance of Type Material:
Irregular to elongate grains, 0.3-0.5 mm; aggregates up to 2.0 mm and powdery masses
Place of Conservation of Type Material:
Central Siberian Geological Museum, Siberian Division, Academy of Sciences, Novosibirsk, Russia, VI-28/1.
Mining Institute, St. Petersburg, Russia, 1908/1–2.
Mining Institute, St. Petersburg, Russia, 1908/1–2.
Geological Setting of Type Material:
Mercury deposit
Associated Minerals at Type Locality:
Reference:
Vasilev, V.I., Lavrentev, Y.G., Palchik, N.A. (1986) Kuzminite Hg2(Br,Cl)2- a new natural mercury halide. Zapiski Vsesoyuznogo Mineralogicheskogo Obshchestva: 115: 595-598.
Synonyms of Kuzminite
Other Language Names for Kuzminite
Relationship of Kuzminite to other Species
Member of:
Other Members of this group:
| Calomel | [Hg2]2+Cl2 | Tet. 4/mmm (4/m 2/m 2/m) : I4/mmm |
| Moschelite | [Hg2]2+I2 | Tet. 4/mmm (4/m 2/m 2/m) : I4/mmm |
Forms a series with:
Common Associates
Related Minerals - Strunz-mindat Grouping
| 3.AA. | Brontesite | (NH4)3PbCl5 |
| 3.AA.05 | Marshite | CuI |
| 3.AA.05 | Miersite | (Ag,Cu)I |
| 3.AA.05 | Nantokite | CuCl |
| 3.AA.05 | UM1999-11:I:CuS | Cu(I,S) |
| 3.AA.10 | Iodargyrite | AgI |
| 3.AA.10 | Tocornalite | (Ag,Hg)I |
| 3.AA.15 | Bromargyrite | AgBr |
| 3.AA.15 | Chlorargyrite | AgCl |
| 3.AA.20 | Carobbiite | KF |
| 3.AA.20 | Griceite | LiF |
| 3.AA.20 | Halite | NaCl |
| 3.AA.20 | Sylvite | KCl |
| 3.AA.20 | Villiaumite | NaF |
| 3.AA.25 | Salammoniac | NH4Cl |
| 3.AA.25 | UM1998-03-Cl:Tl | TlCl |
| 3.AA.25 | Lafossaite | Tl(Cl,Br) |
| 3.AA.25 | Nataliyamalikite | TlI |
| 3.AA.30 | Calomel | [Hg2]2+Cl2 |
| 3.AA.30 | Moschelite | [Hg2]2+I2 |
| 3.AA.35 | Neighborite | NaMgF3 |
| 3.AA.35 | Parascandolaite | KMgF3 |
| 3.AA.40 | Chlorocalcite | KCaCl3 |
| 3.AA.40 | Javorieite | KFeCl3 |
| 3.AA.45 | Kolarite | PbTeCl2 |
| 3.AA.50 | Radhakrishnaite | PbTe3(Cl,S)2 |
| 3.AA.55 | Challacolloite | KPb2Cl5 |
| 3.AA.60 | Hephaistosite | TlPb2Cl5 |
| 3.AA.90 | Pseudocotunnite | K2PbCl4 |
Other Information
Notes:
Soluble in warm HCl, readily soluble in aqua regia, darkens in KOH.
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 Kuzminite
mindat.org URL:
https://www.mindat.org/min-2300.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 Kuzminite
Reference List:
Localities for Kuzminite
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.
Germany | |
| |
Russia | |
| |
| |
Spain | |
|
Quick NavTopAbout KuzminiteUnique IdentifiersIMA Classification Classification Mineral SymbolsPronunciation Physical Properties Optical Data Chemistry Crystallography Crystal StructureX-Ray Powder DiffractionGeological 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