Kuzminite
A valid IMA mineral species
This page is currently not sponsored. Click here to sponsor this page.
About Kuzminite
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
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.
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