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Lavrentievite (Lavrentievit)

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Lavrentievit
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Lavrentievit
weiße, flockige Aggregate von Lavrentievit, Khaidarkan, Fergana-Tal, Osh Oblast, Kirgisistan; BB ~ 4 mm, analysiert
Copyright: MinTreasure.com (Carsten Slotta); Contribution: openpit
Location: Kirgistan/Batken, Oblast/Kadamdschai, Bezirk/Hg-Sb-Lagerstätten/Khaidarkan (Aidarken; Chaidarkan; Khaydarkan)
Mineral: Lavrentievite
Image: 1588258673
License: Usage for Mineralienatlas project only
Lavrentievit

weiße, flockige Aggregate von Lavrentievit, Khaidarkan, Fergana-Tal, Osh Oblast, Kirgisistan; BB 4 mm, analysiert
Copyright: MinTreasure.com (Carsten Slotta)
Contribution: openpit 2020-04-30
Locality: Khaidarkan (Aidarken; Chaidarkan; Khaydarkan) / Hg-Sb-Lagerstätten / Kadamdschai, Bezirk / Batken, Oblast / Kirgistan

Collectors Summary

Color hellgelb, grauschwarz
Hardness (Mohs) 3
Crystal System monoklin, P2, Pm, P2/m

Chemism

Chemical formula

Hg3S2(Cl,Br)2

Chemical composition

Brom, Chlor, Quecksilber, Schwefel

Unit weight: 759.03885 u; Number of atoms in the formula: 7

Info

Empirical formula:

Hg3S2(Cl0.75Br0.25)2

Element

Symbol

Weight%

Atoms

Atoms%

Atom weight (u)

Sum weight (u)
Sulfur

S

8.45

2

28.57

32.0655000

64.1310000
Chlorine

Cl

7.01

1.5

21.43

35.4532000

53.1798000
Bromine

Br

5.26

0.5

7.14

79.9041000

39.9520500
Mercury

Hg

79.28

3

42.86

200.5920000

601.7760000

Strunz 9th edition incl. updates

2.FC.15

2: Sulfide und Sulfosalze (Sulfide, Selenide, Telluride, Arsenide, Antimonide, Bismutide, Sulfarsenite, Sulfantimonite, Sulfbismuthite)
F: Sulfide, Arsenide, Alkaide; Sulfide mit Halogeniden, Oxiden, Hydroxiden (H2O)
C: mit Cl, Br, I (Halide-Sulfide)
15:Corderoit-Gruppe

Lapis Classification

II/F.14-040

II: SULFIDE UND SULFOSALZE (Sulfide, Selenide, Telluride, Arsenide, Antimonide, Bismutide)
F: Sulfide mit nichtmetallischem Charakter
14: Halogensulfide (Sulfohalide) mit Quecksilber/Blei und verwandte Verbindungen

Classification by Hölzel

2.KB.100

2: SULFIDES
K: Nonmetallic Sulfides, HalideSulfides, etc.
B: With Cl,(Br,I)
1: Corderoite-Lavrentievite-Group

Dana 8th edition

10.03.04.01

10: Oxyhalides and Hydroxyhalides
03: Oxyhalides and Hydroxyhalides where (A)3 (O,OH)2 Xq

IMA status

Anerkannt von der CNMNC

Mineral status

anerkanntes Mineral

Optical Properties

Color

hellgelb, grauschwarz

RI value α / ω / n

2.0>

RI value β

2.0>

RI value γ / ε

2.0>

Ri mean

2.0>

2V angle

Biaxial

Crystallography

Crystal System

monoklin

Class (H-M)

2, m, 2/m

Space Group number

3, 6, 10

Space Group

P2, Pm, P2/m

Cell parameters a (Å)

8.94

Cell parameters b (Å)

5.194

Cell parameters c (Å)

18.33

Cell parameters a/b or c/a

1.721

Cell parameters c/b

3.529

Cell parameters α

90°

Cell parameters β

92.43

Cell parameters γ

90°

Z

5

Volumne (ų)

850.376

X-Ray Powder Diffraction

3.97(40),
3.37(50),
2.89(30),
2.6(100),
2.29(40),
2.198(40),
1.588(40)
XRD chart Lavrentievite

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

Physical Properties

Hardness (Mohs)

3

VHN (Hardness Vickers)

93

Density (g/cm³)

7.38 (berechnet)

7.41 ( ρ calc. Mineralienatlas )

(Co-)Type locality

(Co-)Type locality

Russland/Sibirien, Föderationskreis/Tuwa-Republik (Tuva, Tyva)/Pii-Khem, Distrikt/Uyuk/Arzak

Russland/Sibirien, Föderationskreis/Tuwa-Republik (Tuva, Tyva)/Pii-Khem, Distrikt/Uyuk/Oorash-Khem, Fluss/Kadyrel

Preface

Author (Name, Year)

Vasil'ev & Pal'chik & Grechishchev, 1984

References

Geologiya i Geofizika (in Russian) (1984) (7), 54

Other languages

German

Lavrentievit

Spanish

Lavrentievita

French

Lavrentievite

English

Lavrentievite

Russian

Лаврентьевит

Japanese

ﾗﾍﾞﾝﾁｪﾊﾞｲﾄ

Alternative Name

German

Lawrentjewit

Spanish

Lawrentjewita

Lawrentjewite

CNMNC (IMA)-Number

IMA 1984-020

CNMNC symbol

Symbol

Lvr

Locations with GPS information