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Kuzminite

Collectors Summary

Color farblos
Streak color weiß, grau
Hardness (Mohs) 2
Solubility +++ warme HCl, Königswasser
Crystal System tetragonal, I4/mmm

Chemism

Chemical formula

Hg(Br,Cl)

Chemical composition

Brom, Chlor, Quecksilber

Unit weight: 269.383375 u; Number of atoms in the formula: 2

Info

Empirical formula:

Hg(Br0.75Cl0.25)

Element

Symbol

Weight%

Atoms

Atoms%

Atom weight (u)

Sum weight (u)

Chlorine

Cl

3.29

0.25

12.50

35.4532000

8.8633000

Bromine

Br

22.25

0.75

37.50

79.9041000

59.9280750

Mercury

Hg

74.46

1

50.00

200.5920000

200.5920000

Strunz 9th edition incl. updates

3.AA.30

3: Halide (Fluoride, Chloride, Bromide, Iodide)
A: Einfache Halogenide ohne H2O
A: M:X = 1:1 und 2:3
30:Kalomel-Gruppe

Lapis Classification

III/A.05-020

III: HALOGENIDE (Fluoride, Chloride, Bromide, Jodide)
A: Einfache Halogenide
5: Wasserfrei, Metall : Halogen = 1:1

Classification by Hölzel

3.AA.420

3: HALIDES
A: Simple Halides without H2O
A: Me/X=1/1
4: Calomel-Group

Dana 8th edition

09.01.08.02

09: Halide Minerals
01: Anhydrous and Hydrated Halides where A X
08: Calomel Group

IMA status

Anerkannt von der CNMNC

Mineral status

anerkanntes Mineral

Optical Properties

Color

farblos

Streak color

weiß, grau

max. Birefringence

schwach

RI value α / ω / n

2.>

RI value γ / ε

2.>

Ri mean

2.>

2V angle

Uniaxial (+)

Crystallography

Crystal System

tetragonal

Class (H-M)

4/mmm

Space Group number

139

Space Group

I4/mmm

Cell parameters a (Å)

4.597

Cell parameters b (Å)

-

Cell parameters c (Å)

11.034

Cell parameters a/b or c/a

2.400

Cell parameters c/b

-

Cell parameters α

90°

Cell parameters β

90°

Cell parameters γ

90°

Z

4

Volume (ų)

233.175

X-Ray Powder Diffraction

4.26(60),
3.25(100),
2.76(40),
2.296(20),
2.103(50),
1.989(30),
1.768(20),
1.626(20)

XRD chart Kuzminite

Calculated from d-spacing and intensity at 0.1541838 nm (Cu)

Crystal Structure 3D

Open larger view

Physical Properties

Hardness (Mohs)

2

VHN (Hardness Vickers)

25 (20g)

Density (g/cm³)

7.64 (berechnet)

7.673 ( ρ calc. Mineralienatlas )

Instability

+++ warme HCl, Königswasser

Preface

Author (Name, Year)

Vasil'ev & Lavrent'ev & Pal'chik, 1986

References

Zapiski Vsesoyuznogo Mineralogicheskogo Obshchestva 115 (1986), 595

Other languages

German

Kuzminit

Spanish

Kuzminita

English

Kuzminite

French

Kuzminite

Russian

Кузьминит

CNMNC (IMA)-Number

IMA 1986-005

CNMNC symbol

Symbol

Kzm

Locations with GPS information

IDs

GUSID (Global unique identifier short form) mHA6QgX1VUSvOwKjm91eBQ
GUID (Global unique identifier) 423A7098-F505-4455-AF3B-02A39BDD5E05
Database ID 2099