Kuzminite Mineral Data

General Kuzminite Information

Chemical Formula:

Hg2(Br,Cl)2

Composition:

Molecular Weight = 538.76 gm

Mercury 74.46 % Hg 77.43 % Hg₂O

Bromine 22.25 % Br 22.25 % Br

- % Br -2.23 % -O=Br₂

Chlorine 3.29 % Cl 3.29 % Cl

- % Cl -0.74 % -O=Cl₂

______ ______

100.00 % 100.00 % = TOTAL OXIDE

Empirical Formula:

Hg₂Br_1.5Cl_0.5

Environment:

Vugs in mercury sulfides, in calcite veins in a mercury ore deposit. Forms a series with calomel.

IMA Status:

Approved IMA 1986

Locality:

Kadyrel mercury deposit, Pii-Khem district, Tuva, Siberia, Russia. Link to MinDat.org Location Data.

Name Origin:

Aleksei Mikhailovich Kuzmin (1891-1980), Russian mineralogist of the Tomsk Polytechnic Institute, Tomsk, Russia.

Name Pronunciation:

Kuzminite + Pronunciation

Synonym:

ICSD 23721

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Kuzminite Crystallography

Axial Ratios:

a:c = 1:2.40026

Cell Dimensions:

a = 4.597, c = 11.034, Z = 2; V = 233.18 Den(Calc)= 7.67

Crystal System:

Tetragonal - Ditetragonal DipyramidalH-M Symbol (4/m 2/m 2/m) Space Group: I 4/mmm

$Help on X Ray Diffraction:$ X Ray Diffraction:

By Intensity(I/I_o): 3.25(1), 4.26(0.55), 2.103(0.5),

Crystal Structure:

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Wyckoff R W G , Crystal Structures , 1 (1963) p.85-237, Second edition. Interscience Publishers, New York, New York

Physical Properties of Kuzminite

Cleavage:

{???} Good

Color:

Bluish gray, Colorless, White.

Density:

7 - 7.2, Average = 7.1

Diaphaneity:

Transparent

Hardness:

1.5 - Between Talc and Gypsum

Luster:

Adamantine

Streak:

gray

Optical Properties of Kuzminite

Optical Data:

NCalc= 2.31 - from Gladstone-Dale relationship (KC = 0.1702) where Ncalc=Dcalc*KC+1
NCalc= 2.21 - from Gladstone-Dale relationship (KC = 0.1702) where Ncalc=Dmeas*KC+1

Calculated Properties of Kuzminite

Electron Density:

Bulk Density (Electron Density)=6.29 gm/cc
note: Specific Gravity of Kuzminite =7.67 gm/cc.

Fermion Index:

Fermion Index = 0.22
Boson Index = 0.78

Photoelectric:

PE_Kuzminite=1,306.42 barns/electron
U=PE_Kuzminite x rElectron Density=8,220.62 barns/cc.

Radioactivity:

GRapi = 0 (Gamma Ray American Petroleum Institute Units)
Kuzminite is Not Radioactive

Kuzminite Classification

Dana Class:

09.01.08.02 (09)Anhydrous and Hydrated Halides

(09.01)where A X

(09.01.08)Calomel Group

09.01.08.01 Calomel Hg2Cl2 I 4/mmm 4/m 2/m 2/m

09.01.08.02 Kuzminite Hg2(Br,Cl)2 I 4/mmm 4/m 2/m 2/m

09.01.08.03 Moschelite Hg2I2 I 4/mmm 4/m 2/m 2/m

Strunz Class:

03.AA.30 03 - HALIDES

03.A - Simple Halides, Without H2O

03.AA -M:X = 1:1, 2:3, 3:5, etc.

03.AA.30 Calomel Hg2Cl2 I 4/mmm 4/m 2/m 2/m

03.AA.30 Kuzminite Hg2(Br,Cl)2 I 4/mmm 4/m 2/m 2/m

03.AA.30 Moschelite Hg2I2 I 4/mmm 4/m 2/m 2/m

Other Kuzminite Information

References:

NAME( AntBidBlaNic3) PHYS. PROP.(Am.Min.,Vol.73,p192,1988)

See Also:

Links to other databases for Kuzminite :
1 - Am. Min. Crystal Structure Database
2 - Athena
3 - EUROmin Project
4 - Ecole des Mines de Paris
5 - GeoScienceWorld
6 - Google Images
7 - Google Scholar
8 - Handbook of Mineralogy (MinSocAm)
9 - Handbook of Mineralogy (UofA)
10 - MinDAT
11 - Mineralienatlas (Deutsch)
12 - Online Mineral Museum
13 - QUT Mineral Atlas
14 - Ruff.Info

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Print or Cut-and-Paste your Kuzminite Specimen Label here :

Kuzminite

Hg2(Br,Cl)2
Dana No: 09.01.08.02 Strunz No: 03.AA.30
Locality:

Notes: