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Volynskite (Volynskit)

Collectors Summary

Color blass purpurfarben
Hardness (Mohs) 2.5
Crystal System trigonal, P3m1

Chemism

Chemical formula

AgBiTe2

Chemical composition

Bismut, Silber, Tellur

Unit weight: 572.054602 u; Number of atoms in the formula: 4

Info

Empirical formula:

AgBiTe2

Element

Symbol

Weight%

Atoms

Atoms%

Atom weight (u)

Sum weight (u)

Silver

Ag

18.86

1

25.00

107.8682200

107.8682200

Tellurium

Te

44.61

2

50.00

127.6030000

255.2060000

Bismuth

Bi

36.53

1

25.00

208.9803820

208.9803820

Analysis wt%

Ag : 18.86, Bi : 36.53, Te : 44.61 (Ref: berechnet)

Strunz 9th edition incl. updates

2.CD.15

2: Sulfide und Sulfosalze (Sulfide, Selenide, Telluride, Arsenide, Antimonide, Bismutide, Sulfarsenite, Sulfantimonite, Sulfbismuthite)
C: Metallsulfide, M : S = 1 : 1 (und ähnliche)
D: mit Zinn (Sn), Blei (Pb), Quecksilber (Hg), usw.
15:Matildit-Gruppe

Lapis Classification

II/C.16-050

II: SULFIDE UND SULFOSALZE (Sulfide, Selenide, Telluride, Arsenide, Antimonide, Bismutide)
C: Sulfide mit Metall : S,Se,Te ~ 1:1

Classification by Hölzel

2.CD.340

2: SULFIDES
C: Sulfides (etc) with Me/S=1/1
D: With Sn,Pb, etc. - Coordination Number ~[4+1]
3: Matildite-Group

Dana 8th edition

03.07.01.03

03: Sulfides - Sulfosalts
07: Sulfides - Sulfosalts where z/y = 2 - (A+)i (A++)j [By Cz], A=metals, B=semi-metals, C=non-metals
01: Matildite Group

IMA status

Anerkannt von der CNMNC

Mineral status

anerkanntes Mineral

Optical Properties

Color

blass purpurfarben

Diaphaneity (Transparency)

opak

Crystallography

Crystal System

trigonal

Class (H-M)

3m

Space Group number

164

Space Group

P3m1

Cell parameters a (Å)

4.468

Cell parameters b (Å)

-

Cell parameters c (Å)

20.75

Cell parameters a/b or c/a

4.644

Cell parameters c/b

-

Z

3

Volumne (ų)

358.736

X-Ray Powder Diffraction

3.21(80),
3.09(100),
2.33(30),
2.21(50),
2.15(30),
1.82(30),
1.61(20),
1.55(20)

XRD chart Volynskite

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

Crystal Structure 3D

Open larger view

Physical Properties

Hardness (Mohs)

2.5

VHN (Hardness Vickers)

54 (25g)

Density (g/cm³)

8.01

7.943 ( ρ calc. Mineralienatlas )

(Co-)Type locality

(Co-)Type locality

Armenien/Gegharkunik, Provinz/Vardenis/Zod (Sotk)

Preface

Author (Name, Year)

Bezsmertnaya & Soboleva, 1965

References

Handbook of Mineralogy (Anthony et al.), 1 (1990), 561

Other languages

German

Volynskit

Spanish

Volynskita

English

Volynskite

French

Volynskite

Russian

Волынскит

Simplified Chinese

碲铋银矿

Alternative Name

Simplified Chinese

铋碲银矿

CNMNC symbol

Symbol

Vol

Locations with GPS information